Lens barrel and imaging apparatus

ABSTRACT

A lens barrel that configures an imaging apparatus by being detachably attached to an imaging apparatus main body includes a lens barrel in which an imaging lens is formed and a connecting section to the imaging apparatus main body is formed on one end side in an optical axis direction of the imaging lens and a grip section provided on a side surface of the lens barrel and gripped by a camera operator during imaging. The grip section projects from the side surface of the lens barrel further to a side surface of the apparatus main body than an end face on the connecting section side.

CROSS-REFERENCES TO RELATED APPLICATIONS

The present invention contains subject matter related to Japanese PatentApplication JP 2007-230827 filed in the Japanese Patent Office on Sep.5, 2007, the entire contents of which being incorporated herein byreference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an imaging apparatus, and, moreparticularly to an imaging apparatus to which an imaging apparatus mainbody and a lens barrel including an imaging lens are detachablyattachable and in which the lens barrel is replaceable and the lensbarrel used in the imaging apparatus.

2. Description of the Related Art

In the past, in an imaging apparatus such as a video camera for businessuse, a lens barrel in which an imaging lens is disposed is detachablymounted on an apparatus main body in which a housing unit for arecording medium and a recording and reproducing unit that writes aninformation signal in and reads out the information signal from therecording medium are provided. Therefore, the imaging apparatus is usedwhile lens barrels in which various imaging lenses are disposed areappropriately replaced as replacement lenses.

In the imaging apparatus of this type, a camera operator places anapparatus main body on the shoulder, holds the entire imaging apparatus,grips a grip section provided in the lens barrel to thereby adjust anangle of view, and performs operation of an operation unit provided inthe grip section.

According to the technical development and demands of camera operatorsin these days, a reduction in size and weight of imaging apparatus mainbodies and recording media are advanced. On the other hand, lens barrelsare increased in size and weight according to an increase inmagnification of imaging lenses. Therefore, in the imaging apparatus ofthis type, when the lens barrel is replaced, a weight distribution ofthe entire imaging apparatus changes and a burden on a camera operatorincreases.

In particular, whereas the weight of the imaging apparatus main body isfixed, sizes and weights of the lens barrels are different from oneanother. Therefore, weight balance changes every time a lens barrel isreplaced. In addition, in the imaging apparatus, the camera operatorgrips the grip section provided in the lens barrel to thereby change adirection and adjust an angle of view of the lens barrel and performoperation for imaging. A burden on the camera operator further increasesas the weight balance changes.

Moreover, in the video camera for business use and a high-end model forhigh-level amateur users, there is proposed a model for allowing acamera operator to replace a lens barrel even in a handy-type videocamera that is gripped an entire image apparatus by one hand. In such ahandy-type video camera, the influence of a change in weight balance inthe entire imaging apparatus due to replacement of the lens barrel onthe arm of the camera operator is considered to further increase.

In such a handy-type video camera, in the past, when the lens barrelused in the video camera for business use placed on the shoulder of thecamera operator and handled is attached, since a grip is present in aposition suitable for a shoulder-mounted type, such a grip and thecenter of gravity of the handy-type video camera deviate from eachother. Therefore, it is difficult for the camera operator to hold thevideo camera with sufficient balance simply by gripping the grip.

An example of the technique in the past is disclosed in JP-A-2006-72245.

SUMMARY OF THE INVENTION

Therefore, it is desirable to provide an imaging apparatus in which aburden on a camera operator during imaging can be reduced by suppressinga change in weight balance due to replacement of a lens barrel as muchas possible and a lens barrel detachably attachable to the imagingapparatus.

According to an embodiment of the present invention, there is provided alens barrel that configures an imaging apparatus by being detachablyattached to an imaging apparatus main body. The lens barrel includes alens barrel in which an imaging lens is formed and a connecting sectionto the imaging apparatus main body is formed on one end side in anoptical axis direction of the imaging lens and a grip section providedon a side surface of the lens barrel and gripped by a camera operatorduring imaging. The grip section projects from the side surface of thelens barrel further to a side surface of the apparatus main body than anend face on the connecting section side.

According to another embodiment of the present invention, there isprovided an imaging apparatus including an apparatus main body includinga recording and reproducing unit that records information signal inand/or reproducing the information signal from a recording medium and alens barrel detachably attached to the apparatus main body. The lensbarrel includes a lens barrel in which an imaging lens is formed and aconnecting section to the imaging apparatus main body is formed on oneend side in an optical axis direction of the imaging lens and a gripsection provided on a side surface of the lens barrel and gripped by acamera operator during imaging. The grip section projects from the sidesurface of the lens barrel further to a side surface of the apparatusmain body than an end face on the connecting section side.

With the lens barrel and the imaging apparatus according to theembodiments of the present invention, since the grip section is formedto further project to the apparatus main body side from an end face onthe connecting section side to the apparatus main body, the grip sectionis extended to the side surface of the apparatus main body to beprovided over the apparatus main body of the imaging apparatus and thelens barrel. Therefore, with the lens barrel and the imaging apparatusaccording to the embodiments of the present invention, not matter whichlens barrel is mounted, the grip section is located near the center ofgravity of the imaging apparatus. Consequently, the camera operatorsupports near the center of gravity of the imaging apparatus by grippingthe grip section. The camera operator can grip the entire apparatuswhile keeping balance and reduce a burden on the arm.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing a handy-type imaging apparatus froma left side surface thereof;

FIG. 2 is a perspective view showing the handy-type imaging apparatusfrom a right side surface side thereof;

FIG. 3 is a top view showing the handy-type imaging apparatus;

FIG. 4 is a disassembled perspective view showing the handy-type imagingapparatus from a front side thereof;

FIG. 5 is a disassembled perspective view of the handy-type imagingapparatus from a rear side thereof;

FIG. 6 is a front view showing a lens mount;

FIG. 7 is a perspective view showing a preload member;

FIGS. 8A and 8B are a front view and a side view schematically showing astate in which the handy-type imaging apparatus is grasped;

FIG. 9 is a front view showing a direction of mounting a shoe adapter onan apparatus main body;

FIGS. 10A to 10D are perspective view showing the shoe adapter and anaccessory attached to the shoe adapter, wherein FIG. 10A is aperspective view of the accessory, FIG. 10B is a perspective view of theshoe adapter, FIG. 10C is a perspective view of the shoe adapterattached with the accessory, and FIG. 10D is a perspective view showingthe apparatus main body attached with the accessory;

FIG. 11 is a perspective view showing the shoe adapter from a rear sidethereof;

FIG. 12 is a perspective view showing an example of a mat box attachedto the apparatus main body;

FIG. 13 is a side view showing the imaging apparatus attached with themat box in which the accessory is attached to the shoe adapter;

FIG. 14 is a perspective view showing a microphone holder;

FIGS. 15A to 15C are sectional views showing the microphone holderattached with an external microphone;

FIG. 16 is a perspective view showing the microphone holder in whichclamping pieces are locked to each other;

FIG. 17 is a perspective view showing the imaging apparatus mounted withthe external microphone facing a rear side of the imaging apparatus;

FIG. 18 is a perspective view showing a lens hood;

FIG. 19 is a perspective view showing the lens hood;

FIG. 20 is a perspective view showing a lens barrel;

FIG. 21 is a sectional view showing the lens barrel attached with thelens hood;

FIG. 22 is a sectional view showing a part of the lens barrel urged in apivoting direction by an urging member;

FIG. 23 is a sectional view showing a part of the lens barrel urged inthe pivoting direction by the urging member;

FIG. 24 is a perspective view showing the urging member;

FIG. 25 is a perspective view showing the lens barrel to which the lenshood is attached and from which the lens hood detached;

FIG. 26 is a perspective view showing an auxiliary recording mediumunit;

FIG. 27 is a perspective view showing the auxiliary recording mediumunit in which a memory card is inserted and from which the memory cardis detached;

FIG. 28 is a perspective view showing the auxiliary recording mediumunit from a rear side thereof;

FIG. 29 is a side view of the auxiliary recording medium unit;

FIG. 30A is a perspective view of a supporting plate provided with aunit-side terminal section;

FIG. 30B is a diagram showing the supporting plate supported by abearing of a unit main body;

FIG. 31 is a perspective view showing a mounting section of theapparatus main body;

FIG. 32 is a perspective view showing the mounting section from which anexternal connection terminal is exposed;

FIG. 33 is a perspective view showing the mounting section mounted withthe auxiliary recording medium unit;

FIG. 34A is a perspective view showing a main-body-side terminal sectionwith a main body terminal closed by a cover;

FIG. 34B is a perspective view showing the main-body-side terminalsection with the main body terminal exposed;

FIG. 35 is a functional block diagram of the imaging apparatus;

FIGS. 36A to 36C are diagrams showing the auxiliary recording mediumunit attached to an adapter, wherein FIG. 36A shows a unit main body andthe adapter, FIG. 36B shows a battery and the adapter, and FIG. 36Cshows the adapter attached with the unit main body and the battery;

FIGS. 37A and 37B are a front view and a side view showing an imagingstate of a shoulder-mounted-type imaging apparatus;

FIG. 38 is a disassembled perspective view showing theshoulder-mounted-type imaging apparatus from a front side thereof;

FIG. 39 is a disassembled perspective view showing theshoulder-mounted-type imaging apparatus from a rear side thereof;

FIGS. 40A and 40B are diagrams showing a finder block, wherein FIG. 40Ais a perspective view showing a state in which a finder member and aneyepiece member are separated and FIG. 40B is a perspective view showinga state in which the eyepiece member is connected to the finder member;

FIG. 41 is a perspective view showing a state in which the finder memberand the eyepiece member are connected;

FIG. 42A is a front view showing the eyepiece member connected to thefinder member;

FIG. 42B is a sectional view taken along line D-D in FIG. 42A;

FIG. 43 is a perspective view showing a state in which a mountingsection is closed in the shoulder-mounted-type imaging apparatus;

FIG. 44 is a perspective view showing a lid member that closes themounting section;

FIG. 45 is a perspective view showing a state in which the mountingsection is opened in the shoulder-mounted-type imaging apparatus;

FIG. 46 is a perspective view showing a state in which an auxiliaryrecording medium unit is mounted on the mounting section in theshoulder-mounted-type imaging apparatus;

FIG. 47 is a side view showing a state in which the auxiliary recordingmedium unit is mounted on the mounting section in theshoulder-mounted-type imaging apparatus; and

FIG. 48 is a top view showing a state in which the auxiliary recordingmedium unit is mounted on the mounting section in theshoulder-mounted-type imaging apparatus.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

A lens barrel according to an embodiment of the present invention and animaging apparatus in which the lens barrel is used will be hereinafterexplained in detail with reference to the accompanying drawings.

An imaging apparatus 1 according to an embodiment of the presentinvention includes an apparatus main body 2 and a lens barrel 3 that isdetachably attachable to the imaging apparatus main body 2 and ismounted with an imaging lens. The imaging apparatus 1 is a so-calledhandy-type imaging apparatus that a camera operator holds with one handby gripping a grip section provided in the lens barrel 3. The imagingapparatus 1 is substantially reduced in size and weight compared with ashoulder-mounted-type imaging apparatus mounted and held on the shoulderof the camera operator adopted in an imaging apparatus of a lens barrelreplacement type in the past.

The lens barrel 3 is detachably attachable to the imaging apparatus 1.Plural kinds of the lens barrels 3 having different magnifications andthe like are prepared as replacement lenses. An appropriate lens barrel3 can be attached and used according to necessity. As described later,the grip section is formed in the lens barrel 3. The lens barrel 3including the grip section is detached from the apparatus main body.

Both the handy-type imaging apparatus 1 shown in FIG. 1 and ashoulder-mounted-type imaging apparatus 200 shown in FIGS. 37A and 37Bare provided as high-end models for business use or for high-levelamateur users. High-vision imaging is possible with the imagingapparatuses. In such imaging apparatuses 1 and 200, a digital video tapeincluding a tape-like recording medium such as a DV cassette capable ofperforming HDV recording is used as a main recording medium inserted inand detached from the apparatus main body. Images such as moving imagesand still images captured by an imaging lens are converted into electricsignal by a solid-state imaging device such as a CMOS or a CCD and soundis converted into electric signals. The electric signals are recorded ina tape cartridge. The images converted into the electric signals aredisplayed on a display device such as a liquid crystal display.

As a main recording medium for the imaging apparatuses 1 and 200,magnetic tapes other than a DV cassette, disk-like recording mediaincluding optical disks such as a CD, a DVD, and a BD, magneto-opticaldisks, and magnetic disks such as a hard disk, or recording media suchas a semiconductor memory can also be used. Moreover, as describedlater, in the imaging apparatuses 1 and 200, an auxiliary recordingmedium unit that houses a memory card is detachably mounted as anauxiliary recording medium separately from the main recording medium.

Details of the handy-type imaging apparatus 1 are explained below. Then,details of the shoulder-mounted-type imaging apparatus 200 areexplained.

As shown in FIGS. 1 to 3, the imaging apparatus 1 includes the apparatusmain body 2 of a substantially rectangular shape and the lens barrel 3mounted with the imaging lens and detachably attachable to the apparatusmain body 2. As shown in FIGS. 4 and 5, the imaging apparatus 1 ismounted with a battery pack 4 such as a lithium ion secondary batteryserving as a driving power supply and an auxiliary recording medium unit5 that is mounted on the apparatus main body 2 and houses an auxiliaryrecording medium other than a main recording medium. As externalaccessories, an external microphone 6 more excellent in directivity thana built-in microphone and a shoe adapter 7 provided with an accessoryshoe to which other accessories are attached are mountable on theapparatus main body 2. A lens hood 9 is attachable to the lens barrel 3.

A lens mount 10 on which the lens barrel 3 is mounted is formed on afront surface 2 a of the apparatus main body 2. The lens mount 10 has amount ring 11 that is engaged with a body mount 41 formed in a rearsurface 3 b of the lens barrel 3. As shown in FIG. 6, in the mount ring11, an engaging section 12 that is engaged with an outer periphery ofthe body mount 41 is formed in an inner peripheral surface. When anoperation lever 13 is operated to rotate, operation for engaging themount ring 11 with and disengaging the mount ring 11 from the body mount41 is performed.

A preload member 14 for preventing the engagement of the lens mount 10and the lens barrel 3 from loosening is formed near the lens mount 10.As shown in FIGS. 6 and 7, the preload member 14 includes an operationpiece 16 a extended from a part of a main body section 16 of asubstantially disc shape and an elastic member 17 that is attached to aflat section provided in an outer periphery of the main body section 16and is brought into contact with an outer peripheral surface of the lensbarrel 3. The main body section 16 is pivotally attached to the frontsurface 2 a of the apparatus main body 2. When the operation piece 16 ais operated by the camera operator, the main body section 16 is pivoted.The elastic member 17 attached to the main body section 16 is formed ina substantially arcuate shape. The outer peripheral surface of the lensbarrel 3 mounted on the lens mount 10 is located on a pivoting locus ofthe elastic member 17.

Before the lens barrel 3 is mounted on the lens mount 10, the elasticmember 17 of such a preload member 14 is pivoted to a position furtherretracted than a mounting position of the lens barrel 3. When the lensbarrel 3 is mounted, the operation piece 16 a of the preload member 14is pivoted by the camera operator and the elastic member 17 thereof ispressed against the outer peripheral surface of the lens barrel 3.Consequently, the preload member 14 can prevent the engagement of thelens barrel 3 and the lens mount 10 from loosening.

As shown in FIG. 2, an operation unit 15 for performing various kinds ofoperation of the imaging apparatus 1 is provided on a right side surface2 b of the apparatus main body 2.

As shown in FIGS. 1 and 3, a recording and reproducing unit 20 thatrecords and reproduces videos captured from the lens barrel 3 is formedon a left side surface 2 c of the apparatus main body 2. When the lensbarrel 3 is mounted on the apparatus main body 2, a grip section 42provided in the lens barrel 3 is extended to the left side surface 2 cof the apparatus main body 2.

The recording and reproducing unit 20 includes a deck unit in which atape cartridge such as a mini DV cassette serving as a main recordingmedium of the imaging apparatus 1 is inserted and driven and a head unitthat records an information signal in and reproduces the informationsignal from the tape cartridge. In the recording and reproducing unit20, an inclined surface 20 a that is formed to swell on the left sidesurface 2 c of the apparatus main body 2 and inclines to the left sidesurface 2 c side over a rear surface 2 d side to the front surface 2 aside of the apparatus main body 2 is formed. When the lens barrel 3 ismounted on the apparatus main body 2, the recording and reproducing unit20 is brought close to the grip section 42 that extends to the left sidesurface 2 c of the apparatus main body 2. In this case, since theinclined surface 20 a inclining to the left side surface 2 c is providedon the front surface 2 a side of the apparatus main body 2, therecording and reproducing unit 20 does not interfere with fingers of acamera operator who grasps the grip section 42. The camera operator canperform smooth grip operation and imaging operation.

In such a recording and reproducing unit 20, when a lid member 21forming an outer housing of the apparatus main body 2 is pivotedsideways according to slide operation of an opening button 21 a, thedeck unit is exposed to the outside. The tape cartridge is inserted anddetached from the rear surface 2 d side of the apparatus main body 2. Asshown in FIG. 3, the tape cartridge inserted in the deck unit is held tobe inclined to the left side surface 2 c side toward the front surface 2a side of the apparatus main body 2 in the same manner as the inclinedsurface 20 a.

In the rear surface 2 d of the apparatus main body 2, a battery housingsection 22 in which the battery pack 4 serving as the driving source ofthe imaging apparatus 1 is housed and a mounting section 23 on which theauxiliary recording medium unit 5 described later is mounted are formed.The battery housing section 22 and the mounting section 23 arecontinuously formed from the rear surface 2 d of the apparatus main body2 to the front surface 2 a side. After the battery pack 4 is housed, theauxiliary recording medium unit 5 is mounted to cover the battery pack 4from the rear surface 2 d side.

In such a battery housing section 22, a hosing space is formed from anopening 25 provided in the rear surface 2 d of the apparatus main body 2to the front surface 2 a side. As shown in FIG. 5, an engagingprotrusion 26 with which an engaging recess 28 formed in an outerperipheral surface of the battery pack 4 is engaged is formed on aninner side of the battery housing section 22. When the battery pack 4 isinserted, the battery pack 4 is inserted from the opening 25 to thefront surface 2 a side and slid to a lower surface side, whereby theengaging recess 28 engages with the engaging protrusion 26. A not-shownmain-body-side terminal section is formed on a lower surface section ofthe battery housing section 22. When the battery pack 4 is inserted, themain-body-side terminal section is connected to a battery-side terminalsection.

In the opening 25, an inserting section 27 in which a finger of thecamera operator can be inserted is formed on an upper surface side toextend to the inside of the battery housing section 22. Consequently,the camera operator can pick up the battery pack 4 and insert and slidethe battery pack 4 to the depth of the battery housing section 22. Asshown in FIG. 3, since the battery pack 4 is attached in the depth ofthe apparatus main body 2, the battery pack 4 is attached further on thefront surface 2 a side of the apparatus main body 2 and adjacent to therecording and reproducing unit 20.

The batter pack 4 housed in the battery housing section 22 is formed bycombining an upper case 4 a in which plural cells of a lithium ionsecondary battery are housed and a lower case 4 b in which a batteryterminal section including an electrode terminal that is connected to aprotection circuit and to which positive and negative electrodes of thecells are connected and an information terminal that communicatesvarious kinds of information such as remaining power and a capacity isexposed to the outside. The engaging recess 28 that engages with theengaging protrusion 26 formed in the battery housing section 22 isformed in the lower case 4 b.

As the battery pack 4, a large-capacity L-size battery in which a largenumber of cells are housed and a small and light S-size battery in whicha small number of cells are housed are prepared. Both the batteries canbe housed in the battery housing section 22 and properly used accordingto uses.

The mounting section 23 formed on the rear surface 2 d of the apparatusmain body 2 is described in detail later together with the auxiliaryrecording medium unit 5.

A handle section 30 is formed on an upper surface 2 e of the apparatusmain body 2. The handle section 30 is formed over a front to reardirection substantially in the center of a width direction of the uppersurface 2 e of the apparatus main body 2. The camera operator can holdthe apparatus main body 2 with sufficient balance by gripping the handlesection 30 during imaging and transportation. As shown in FIG. 2, thehandle section 30 includes a front leg section 30 a inclined forward onthe front surface 2 a side of the apparatus main body 2, a rear legsection 30 b provided on a rear surface side of the apparatus main body2, and a gripping section 30 c that couples the front leg section 30 aand the rear leg section 30 b. In the gripping section 30 c, a recordingbutton and a zoom lever that can be operated even when the grippingsection 30 c is gripped are provided. An attachment hole 30 d to which atripod and various accessories can be attached is also provided.

A pedestal section 31 including an operation board is formed in front ofthe gripping section 30 c. A liquid crystal display panel 32 thatdisplays a video captured from the lens barrel 3 is pivotally providedon the pedestal section 31. The liquid crystal display panel 32 issupported by a hinge mechanism provided at an end of the pedestalsection 31 and is pivotable between a closed position where a displaysurface thereof is opposed to the operation board of the pedestalsection 31 and a display position where the display surface is directedoutward to expose the operation board. In the display position, theliquid crystal display panel 32 can be directed from above the apparatusmain body 2 to arbitrary directions, i.e., front, below, and rear. It ispossible to cope with any imaging posture and cause a person beingimaged to visually recognize a video.

As shown in FIG. 4, a shoe attaching section 33 to which the shoeadapter 7 is attached is formed on a front surface of the pedestalsection 31. A microphone holder 34 to which the external microphone 6 isattached is formed to project on the left side surface 2 c side of theapparatus main body 2 of the pedestal section 31. The shoe attachingsection 33 and the microphone holder 34 are described in detail latertogether with the shoe adapter 7 and the external microphone 6.

A finder unit 35 for visually recognizing a video captured from the lensbarrel 3 is provided behind the gripping section 30 c. The finder unit35 includes a display unit 36 that is provided to project to the rearsurface 2 d side substantially in parallel to an optical axis directionof the apparatus main body 2 and incorporates a display panel such as anLCD that displays the captured video and an eyepiece member 37 providedto be detachably attachable to the display unit 36. In the display unit36, the LCD is exposed to the outside and a coupling piece for couplingto the eyepiece member 37 and an operation button for operating thecoupling piece are formed. In the eyepiece member 37, a coupling sectionthat is coupled to the display unit 36, a lens group that changes amagnification of the LCD, a moving member that moves the lens group inan optical axis direction, and an eye cup on which the camera operatorplaces an eye are formed.

Since the display unit 36 is pivotable to an upper part of a rear end ofthe gripping section 30 c, the finder unit 35 can cope with any imagingposture. In the finder unit 35, since the eyepiece member 37 can bedetachably attachable to the display unit 36, various eyepiece unitswith different eye cups and lens groups can be used according to uses.

A screw hole (not shown) for attaching the tripod is provided closer tothe front surface 2 a in a lower surface 2 f of the apparatus main body2. A lower surface opening 38 that continues to the opening 25 providedin the rear surface 2 d is formed on the rear surface 2 d side of thelower surfaced 2 f. The lower surface opening 38 forms, together withthe inserting section 27 described above, a space in which a finger ofthe camera operator is inserted when the battery pack 4 is inserted anddetached.

The lens barrel 3 that is attached to the front surface 2 a of such anapparatus main body 2 is explained. The lens barrel 3 is formed in acylindrical shape. A hood mount 110 to which the lens hood 9 is attachedis formed on the front surface 3 a. A body mount 41 that is mounted onthe lens mount 10 formed on the front surface 2 a of the apparatus mainbody 2 is provided on the rear surface 3 b of the lens barrel 3. Thebody mount 41 is inserted through the mount ring 11 of the lens mount 10and can engage with the engaging section 12 formed in an innerperipheral surface of the mount ring 11.

The grip section 42 serving as a grip section of the imaging apparatus 1when the lens barrel 3 is mounted on the apparatus main body 2 is formedon the left side surface 3 c of the lens barrel 3. The camera operatorgrips the grip section 42 with the right hand and performs imagingoperation. In the grip section 42, a grip main body 43 formed in asubstantially rectangular shape and gripped by the palm and the fingersexcluding the thumb of the camera operator and a supporting section 44formed to swell sideways from a rear surface side of the grip main body43 and supported between the thumb and the index finger of the cameraoperator are formed.

In the grip main body 43, an imaging start button, a zoom lever forchanging a magnification, and the like are disposed on an upper surfaceand a rear surface on which the fingers of the camera operator arelocated. The camera operator can hold the apparatus main body 2 with theright hand and perform various kinds of operation in that state. In thegrip main body 43, a grip belt 45 that supports the gripping of theimaging apparatus 1 by the camera operator is provided on a sidethereof. The grip belt 45 is laid over between a front surface sectionof the grip main body 43 and the supporting section 44 to therebysupport the back of the right hand of the camera operator who grips thegrip main body 43. Consequently, the camera operator can easily performgripping and imaging operation of the imaging apparatus 1 with the righthand.

In such a grip section 42, as shown in FIG. 3, a protrusion is formedfurther in a rear surface direction than the rear surface 3 b of thelens barrel 3. When the lens barrel 3 is mounted on the apparatus mainbody 2, the protrusion is extended to the left side surface 2 c of theapparatus main body 2. Consequently, when the lens barrel 3 is mountedon the apparatus main body 2, the grip section 42 is located near thecenter of gravity of the imaging apparatus 1. Therefore, as shown inFIGS. 8A and 8B, when the camera operator grips the grip section 42,since the center of gravity of the imaging apparatus 1 is supported, itis possible to support the imaging apparatus 1 with sufficient balanceand reduce a burden on the camera operator.

As described above, since the imaging apparatus 1 is a handy type forholding the entire imaging apparatus 1 simply by gripping the gripsection 42 with one hand, it is desirable that the camera operator canhold the imaging apparatus 1 with sufficient balance. In the imagingapparatus 1, the lens barrel 3 is detachably attachable to the apparatusmain body 2. Various lens barrels 3 having different magnifications canbe mounted on the imaging apparatus 1. Whereas there is only oneapparatus main body 2, the lens barrels 3 have different sizes andweights depending on types thereof. Therefore, a weight balance of theimaging apparatus 1 depends on the lens barrel 3 mounted on theapparatus main body 2. However, no matter which lens barrel 3 ismounted, it is desired that the imaging apparatus 1 can be held withsufficient balance.

In this regard, since the grip section 42 projects further in the rearsurface direction from the rear surface 3 b and is extended to the leftside surface 2 c of the apparatus main body 2, the grip section 42 isprovided over the apparatus main body 2 of the imaging apparatus 1 andthe lens barrel 3. No matter which lens barrel 3 is mounted, the gripsection 42 is located near the center of gravity of the imagingapparatus 1. Therefore, the camera operator supports near the center ofgravity of the imaging apparatus 1 by gripping the grip section 42. Thecamera operator can hold the imaging apparatus 1 while keeping a balanceand reduce a burden on the arm.

As shown in FIG. 8A, in the imaging apparatus 1, since the recording andreproducing unit 20 is formed on the left side surface 2 c side of theapparatus main body 2 to which the grip section 42 is extended, thecenter of gravity is present on the left side surface 2 c side of theapparatus main body 2. Therefore, since the center of gravity is biasedto the grip section 42 side, the camera operator supports the center ofgravity of the imaging apparatus 1 by gripping the grip section 42. Thecamera operator can grip the imaging apparatus 1 while keeping a balanceand reduce a burden on the arm.

In the imaging apparatus 1, the battery housing section 22 is providedfurther in the depth than the opening 25 formed in the rear surface 2 dof the apparatus main body 2. As shown in FIG. 3, the battery pack 4having relatively large weight is attached further on the front surface2 a side. Therefore, in the imaging apparatus 1, the center of gravityis present further on the front surface 2 a side. The camera operatorsupports the center of gravity by gripping the grip section 42.

In the imaging apparatus 1, the microphone holder 34 is formed toproject from the pedestal section 31 to the left side surface 2 c sideof the apparatus main body 2. As describe later, the external microphone6 is attached to the left side surface 2 c side. Consequently, in theimaging apparatus 1, since the center of gravity is further biased tothe left side surface 2 c side of the apparatus main body 2, the cameraoperator supports the center of gravity by gripping the grip section 42extended to the left side surface 2 c side.

In this way, in the imaging apparatus 1, a layout in which the center ofgravity is biased to the front surface 2 a side on the left side surface2 c side of the apparatus main body 2 to which the grip section 42extends is adopted. Therefore, the camera operator supports the centerof gravity by gripping the grip section 42. The camera operator canreduce a burden on the arm of the camera operator while keeping abalance.

An inner side surface of the grip section 42 opposed to the left sidesurface 2 c of the apparatus mainbody 2 is designed to be generallyflush with the left side surface 2 c of the apparatus main body 2 whenthe lens barrel 3 is mounted on the apparatus main body 2. Therefore, inthe imaging apparatus 1, even when the lens barrel 3 is replaced, thegrip section 42 projecting to the left side surface 2 c side of theapparatus main body 2 does not interfere with the apparatus main body 2and the lens barrel 3 can be mounted on the apparatus main body 2.

In the apparatus main body 2, since the screw hole for attaching thetripod is provide on the front surface 2 a side of the lower surface 2f, the tripod is attached near the center of gravity. Therefore, theimaging apparatus 1 can be attached to the tripod with sufficientbalance and can perform stable imaging while preventing swinging.

The shoe attaching section 33 formed in the pedestal section 31 of theapparatus main body 2 and the shoe adapter 7 that is attached to theshoe attaching section 33 are explained. The shoe attaching section 33is provided on a front surface of the pedestal section 31. As shown inFIG. 9, the shoe attaching section 33 is attached and detached bysliding the shoe adapter 7 in an arrow S direction in FIG. 9 from theleft side surface 2 c side of the apparatus main body 2.

The shoe attaching section 33 includes a supporting surface section 33 athat is formed in an elliptical shape and supports an adapter main body7 a of the shoe adapter 7 and an engaging surface section 33 b thatengages with a guide section 7 b of the shoe adapter 7. In thesupporting surface section 33 a, a first screw hole 50 through which afirst attaching screw 56 formed in the adapter main body 7 a is insertedis formed. The engaging surface section 33 b is inclined downward to theleft side surface 2 c side of the apparatus main body 2 from thesupporting surface section 33 a. In the engaging surface section 33 b, aguide protrusion 51 on which a guide rail 58 formed in the guide section7 b slides is formed. The guide protrusion 51 is a rectangularprotrusion. Recessed grooves with which the guide rail 58 engages areformed in an upper side and a lower side of the guide protrusion 51. Theshoe adapter 7 is attached to and detached from the shoe attachingsection 33 when the guide rail 58 engages with the guide protrusion 51and slides. In the guide protrusion 51, a second screw hole 52 throughwhich a second attaching screw 59 formed in the guide section 7 b of theshoe adapter 7 is inserted is formed in substantially the center of theguide protrusion 51.

The shoe adapter 7 attached to and detached from such a shoe attachingsection 33 includes, as shown in FIGS. 10A to 10D and FIG. 11, theadapter main body 7 a to which various accessories are attached and theguide section 7 b that is guided by the shoe attaching section 33. Theadapter main body 7 a is formed in an elliptical shape in section, whichis substantially identical with the supporting surface section 33 a ofthe shoe attaching section 33. An accessory shoe 55 to which accessoriesare attached is formed on an upper surface of the adapter main body 7 a.In the accessory shoe 55, a pair of engaging walls opposed to each otherare formed over a front to rear direction of the apparatus main body 2.Various accessories are inserted and detached from a front surface sideformed as an open end.

A first attaching operation unit 57 for operating a first attachingscrew 56, which screws in the supporting surface section 33 a of theshoe attaching section 33, is formed on a right side surface of theadapter main body 7 a. The first attaching screw 56 is exposed to theoutside from an attaching surface with the supporting surface section 33a of the shoe attaching section 33 and screwed with the first screw hole50, which is provided in supporting surface section 33 a, by the firstattaching operation unit 57. The first attaching operation unit 57 foroperating the first attaching screw 56 is pivotally formed on the rightside surface of the adapter main body 7 a. When the first attachingoperation unit 57 is pivoted by the camera operator, the first attachingoperation unit 57 rotates the first attaching screw 56 and screws thefirst attaching screw 56 in the first screw hole 50 formed in thesupporting surface section 33 a or unscrews the first attaching screw56.

The guide section 7 b that engages with the engaging surface section 33b of the shoe attaching section 33 is extended to a left side surface ofthe adapter main body 7 a. In the guide section 7 b, the guide rail 58that slides on the guide protrusion 51 formed in the engaging surfacesection 33 b is formed on a rear surface opposed to the engaging surfacesection 33 b. In the guide rail 58, a pair of rail sections that engagewith recessed grooves formed on an upper side and a lower side of theguide protrusion 51 are formed from lower left to upper right. The railsections are engaged with the respective recessed grooves of the guideprotrusion 51 and slid, whereby the shoe adapter 7 is attached to theshoe attaching section 33.

In the guide section 7 b, the second attaching screw 59 that is screwedin the second screw hole 52 formed in the engaging surface section 33 bis formed between the pair of rail sections and a second attachingoperation unit 60 for rotating the second attaching screw 59 is formedin a front surface. In the second attaching operation unit 60, anoperation dial is rotatably formed in the front surface of the guidesection 7 b. When the second attaching operation unit 60 is rotated bythe camera operator, the second attaching screw 59 is screwed in thesecond screw hole 52 or unscrewed.

As shown in FIG. 9, such a shoe adapter 7 engages the guide rails 58with the guide protrusion 51 from the left side surface 2 c side of theapparatus main body 2 and slides the guide rails 58 to thereby bring theadapter main body 7 a into contact with the supporting surface section33 a of the shoe attaching section 33 and bring the guide section 7 binto contact with the engaging surface section 33 b of the shoeattaching section 33. At this point, in the shoe adapter 7, the firstattaching screw 56 of the adapter main body 7 a is opposed to the firstscrew hole 50 provided in the supporting surface section 33 a and thesecond attaching screw 59 of the guide section 7 b is opposed to thesecond screw hole 52 provided in the engaging surface section 33 b. Aninner side surface of the guide section 7 b is brought into contact withan end face of the guide protrusion 51, whereby a slide area of the shoeadapter 7 is regulated.

Thereafter, the first and second attaching operation units 57 and 60 arerotated by the camera operator, whereby the first attaching screw 56 isscrewed in the first screw hole 50, the second attaching screw 59 isscrewed in the second screw hole 52, and the shoe adapter 7 is attachedto the shoe attaching section 33. When the shoe adapter 7 is removed,the first and second attaching operation units 57 and 60 are rotated tounscrew the first and second attaching screws 56 and 59 and the firstand second screw holes 50 and 52 and, then, the guide rails 58 are slidfrom the guide protrusion 51 to the left side surface 2 c side of theapparatus main body 2.

As shown in FIGS. 10A and 10C, in the shoe adapter 7, variousaccessories are attached to the accessory shoe 55. FIG. 10A is anexample of an accessory attached to the shoe adapter 7 and shows areceiver 61 of a wireless microphone. In the receiver 61, a receptionantenna 62 is vertically provided on an upper surface of a main body 61a and an attaching section 63 with the accessory shoe 55 is formed on alower surface of the main body 61 a.

In the attaching section 63, an engaging section 65 that is engaged withthe accessory shoe 55 and a locking ring 66 that holds the engagement ofthe engaging section 65 and the accessory shoe 55 are formed in a legsection 64. In the engaging section 65, a pair of engaging pieces thatare engaged with a pair of engaging walls of the accessory shoe 55 areformed. The engaging pieces engage with the pair of engaging walls andslide, whereby engagement with and disengagement from the accessory shoe55 are performed. The locking ring 66 is a ring-like member, in an innerperipheral surface of which a screw groove is cut. The engaging ring 66is screwed in an outer peripheral surface of the leg section 64, inwhich a screw groove is also cut, and rotated to be lifted and lowered.When the engaging section 65 is engaged with the accessory shoe 55, theengaging ring 66 is lowered and presses the engaging section 65 againstthe accessory shoe 55 or covers the engaging section 65 to lock theengaging section 65 to the accessory shoe 55.

In a state shown in FIG. 10C in which an accessory such as the receiver61 is attached to the accessory shoe 55, the shoe adapter 7 can beattached to and detached from the shoe attaching section 33. In otherwords, as shown in FIG. 9, the shoe adapter 7 is slid in an arrow Sdirection in FIG. 9, which is a width direction of the apparatus mainbody 2, from the left side surface 2 c side of the apparatus main body 2to be attached to and detached from the shoe attaching section 33. Theshoe adapter 7 is attached to and detached from the shoe attachingsection 33 according to the operation of the first and second attachingoperation units 57 and 60. Both the first and second attaching operationunits 57 and 60 are made operable in a state in which an accessory isattached to the accessory shoe 55 and is made operable in a state inwhich the shoe adapter 7 is attached to the shoe attaching section 33.Therefore, in the imaging apparatus 1, an accessory can be attached anddetached together with the shoe adapter 7 by removing the shoe adapter 7from the shoe attaching section 33 in a state in which the accessory isattached to the accessory shoe 55.

As shown in FIGS. 12 and 13, an external component such as a mat box 70may be attached to a front surface side of the lens barrel 3. The matbox 70 includes a base 72 in which an attaching screw 71 that is screwedin the screw hole for attaching the tripod formed in the lower surface 2f of the apparatus main body 2 is formed, an arm 73 for adjustinglength, a hood 74 provided on the front surface side of the lens barrel3, and a holder 76 to and from which a polarization filer 75 is insertedand detached on the front surface of the lens barrel 3. An insertionopening 76 a is formed on an upper surfaced side of the holder 76. Thepolarization filter 75 is inserted and detached in an up to downdirection of the holder 76.

In such a mat box 70, the hood 74 is arranged in front of the shoeadapter 7. Therefore, unless there is enough room in a space between theshoe adapter 7 and the mat box 70, when an accessory attached to theaccessory shoe 55 is slid forward, the accessory collides with the matbox 70 and may be unable to be removed. If the mat box 70 is removedevery time the accessory is attached and detached, attaching anddetaching work is complicated.

In this regard, in the imaging apparatus 1, the shoe adapter 7 is slidin the width direction of the apparatus main body 2 to be attached toand detached from the shoe attaching section 33. In the imagingapparatus 1, the first attaching operation unit 57 for attaching anddetaching the shoe adapter 7 to and from the shoe attaching section 33is provided on the right side surface of the adapter main body 7 a andthe second attaching operation unit 60 is provided on the front surfaceof the guide section 7 b. Since both the operation units can be operatedeven in a state in which the accessory is attached to the accessory shoe55 and the mat box 70 is attached to the lens barrel 3, the accessorycan be removed from the apparatus main body 2 together with the shoeadapter 7. Therefore, in the imaging apparatus 1, the accessory can beattached and detached without interfering with the mat box 70 andworkability can be improved.

When the polarization filter 75 is inserted and detached, since theaccessory can be removed from the apparatus main body 2 together withthe shoe adapter 7, it is possible to simplify work compared with theremoval of the shoe adapter 7 after the removal of the accessory fromthe accessory shoe 55. In a state in which the shoe adapter 7 is notattached, since the shoe attaching section 33 is formed in a positionretracted to a rear surface side from an insertion and detachment areaof the polarization filter 75, the polarization filter 75 can beinserted and detached without colliding with the shoe attaching section33.

The microphone holder 34 formed on the left side surface 2 c side of thepedestal section 31 is explained. An external microphone 6 that is usedinstead of the built-in microphone of the apparatus main body 2 isattached to the microphone holder 34. The external microphone 6 hasunidirectionality for making it possible to catch remote sound when asubject in a remote location is imaged. As shown in FIG. 14, theexternal microphone 6 includes a sound collecting section 6 a formed ina cylindrical shape, a gripping section 6 b formed in a cylindricalshape that is provided continuously from the sound collecting section 6a and is thin compared with the sound collecting section 6 a, and acable section 6 c that is connected to an end of the gripping section 6b on the opposite side of the sound collecting section 6 a. An end ofthe cable section 6 c on the opposite side of the gripping section 6 bis detachably connected to a microphone terminal 78 exposed on a leftside surface of the pedestal section 31.

The microphone holder 34 that holds such an external microphone 6includes, as shown in FIGS. 14 to 16, a first clamping piece 80 and asecond clamping piece 81 having a shape obtained by dividing acylindrical body into to in an axial direction thereof. Both theclamping pieces 80 and 81 are pivotally coupled by hinge means 82 in onecontact portion at the time when the clamping pieces are joined into acylindrical shape.

A coupling member 83 for coupling to the pedestal section 31 isconnected to an outer periphery of the first clamping piece 80. Thefirst clamping piece 80 is connected to the pedestal section 31 via thecoupling member 83. Therefore, in the microphone holder 34, the secondclamping piece 81 is pivoted by the hinge means 82 with the contactportion in contact with the first clamping piece 80 as a fulcrum.Consequently, in the microphone holder 34, the first clamping piece 80and the second clamping piece 81 clamp the gripping section 6 b of theexternal microphone 6 from a lower side and an upper side, respectively.

In the first clamping piece 80 and the second clamping piece 81, a lockmechanism 85 for clamping the external microphone 6 is formed. The lockmechanism 85 includes a locking arm 86 and an operation piece 87 foroperating the locking arm 86 formed in an outer periphery of the firstclamping piece 80 and a locking protrusion 88, to which the locking arm86 is locked, formed in an outer periphery of the second clamping piece81.

The locking arm 86 is formed in a substantially rectangular shape. Oneend in a longitudinal direction thereof is pivotally supported by theoperation piece 87. The other end in the longitudinal direction can belocked to the locking protrusion 88 formed in the second clamping piece81. One end of the operation piece 87 is pivotally supported by theouter periphery of the first clamping piece 80. The other end as a freeend of the operation piece 87 is pivoted to engage and disengage thelocking arm 86 and the locking protrusion 88. The locking protrusion 88is protrudingly provided in the outer periphery of the second clampingpiece 81. A locking groove in which the locking arm 86 is locked isformed in an end face on the opposite side of the first clamping piece80.

After the second clamping piece 81 is pivoted upward to place thegripping section 6 b of the external microphone 6 on an inner surface ofthe first clamping piece 80, the second clamping piece 81 is pivoteddownward to be locked to the first clamping piece 80, whereby the lockmechanism 85 holds the gripping section 6 b of the external microphone6. Specifically, the locking arm 86 is locked in the locking groove ofthe locking protrusion 88 and the operation piece 87 is pivoted to anouter peripheral surface side of the first clamping piece 80, wherebythe lock mechanism 85 regulates pivoting of the locking arm 86. When theexternal microphone 6 is removed, the operation piece 87 is pivotedupward from the outer peripheral surface of the first clamping piece 80and the locking arm 86 is unlocked from the locking groove of thelocking protrusion 88, whereby the lock mechanism 85 allows the secondclamping piece 81 to pivot.

In this way, in the microphone holder 34, the first clamping piece 80and the second clamping piece 81 are locked by the lock mechanism 85 toattach and detach the external microphone 6. Therefore, attaching anddetaching work for the external microphone 6 can be simply performed bysimply performing pivoting operation for the operation piece 87.Therefore, for example, as shown in FIG. 17, when the externalmicrophone 6 is attached to the microphone holder 34 again with thesound collecting section 6 a directed to the rear surface side to putthe imaging apparatus 1 back to a storage case or when the imagingapparatus 1 is taken out from the storage case and the externalmicrophone 6 is attached again with the sound collecting section 6 adirected to the front surface side, it is possible to easily and quicklyperform attaching and detaching work for the external microphone 6.

An elastic sheet 90 that supports the gripping section 6 b of theexternal microphone 6 is formed on inner surfaces of the first andsecond clamping pieces 80 and 81 of such a microphone holder 34. Theelastic sheet 90 is provided with elastic protrusions 91 and supportsthe gripping section 6 b with the elastic protrusions 91 to therebyprevent noise due to vibration and the like from being transmitted tothe external microphone 6 via the microphone holder 34 and support theexternal microphone 6 horizontally.

Such an elastic sheet 90 is formed by molding elastic resin such asrubber and includes sheet sections 92 that are stuck to respective innerperipheral surfaces of the first and second clamping pieces 80 and 81and plural elastic protrusions 91 that are molded on the sheet section92 and come into contact with the gripping section 6 b of the externalmicrophone 6. When the first clamping piece 80 and the second clampingpiece 81 of the microphone holder 34 are locked by the lock mechanism85, the elastic sheet 90 supports the gripping section 6 b of theexternal microphone 6 from upper and lower directions with the elasticprotrusions 91.

For example, four elastic protrusions 91 are arranged in each of thesheet sections 92 at equal intervals. When the first and second clampingpieces 80 and 81 are butted against each other, the elastic protrusions91 are opposed to each other and support the gripping section 6 b fromthe upper and lower directions. In a first elastic sheet 90 a stuck tothe first clamping piece 80, two elastic protrusions 91 a provided onthe front surface 2 a side of the apparatus main body 2 are formedhigher than two elastic protrusions 91 b provided on the rear surface 2d side of the apparatus main body 2 and respective elastic protrusions91 b of a second elastic sheet 90 b stuck to the second clamping piece81.

Therefore, as shown in FIG. 15A, when the first and second clampingpieces 80 and 81 are butted against each other, the microphone holder 34supports a front side of the gripping section 6 b of the externalmicrophone 6 with the elastic protrusions 91 a formed on a front side ofthe first elastic sheet 90 a that supports the gripping section 6 b ofthe external microphone 6 from a lower side. Therefore, in the externalmicrophone 6, the sound collecting section 6 a is prevented from hangingdown with own weight thereof and is kept horizontal.

As shown in FIG. 15B, in the microphone holder 34, steps 93 higher on afront surface side may be provided on the inner surface of the firstclamping piece 80, which supports the gripping section 6 b of theexternal microphone 6 from a lower side, and the first elastic sheet 90a, whereby the height of the elastic protrusion 91 a on the frontsurface 2 a side may be set relatively high. In this case, the twoelastic protrusions 91 a formed on the front surface side of the firstelastic sheet 90 a only have to have height same as that of the twoelastic protrusions 91 b provided on the rear surface side and therespective elastic protrusions 91 b of the second elastic sheet 90 b.With such a configuration, in the external microphone 6, the front sideof the gripping section 6 b is supported high and the sound collectingsection 6 a is prevented from hanging down with own weight thereof andkept horizontal. In this case, as in the above case, the elasticprotrusions 91 a that support the front side of the gripping section 6 bfrom downward may be formed higher than the other elastic protrusions 91b.

In the first clamping piece 80, other than providing the step on theinner surface, an inclined surface rising to the front surface side maybe provided. A step or inclination higher on the front surface side maybe formed in the first clamping piece 80 and a step or inclination loweron the rear surface side may be formed in the second clamping piece 81.

Moreover, as shown in FIG. 15C, in the microphone holder 34, therespective elastic protrusions 91 a formed on the front surface side ofthe first elastic sheet 90 a stuck to the first clamping piece 80 andthe rear surface side of the second elastic sheet 90 b stuck to thesecond clamping piece 81 may be set high and the respective elasticprotrusions 91 b formed on the rear surface side of the first elasticsheet 90 a and the front surface side of the second elastic sheet 90 bmay be set low. With such a configuration, in the external microphone 6,the front surface side of the gripping section 6 b is supported high andthe rear surface side thereof is supported low. The sound collectingsection 6 a is prevented from handing down with own weight thereof andkept horizontal.

All the elastic protrusions 91 are formed in a semispherical shape andsupport the gripping section 6 b of the external microphone 6 from thetops thereof. Therefore, a contact area of the gripping section 6 b ofthe external microphone 6 with the elastic protrusions 91 is minimized.Therefore, the microphone holder 34 can make noise due to vibration andthe like to be less easily transmitted via the first and second clampingpieces 80 and 81.

The lens hood 9 attached to the front surface of the lens barrel 3 isexplained. The lens hood 9 is attached according to necessity in orderto prevent unnecessary light from being made incident in the lens barrel3. As shown in FIGS. 18 and 19, the lens hood 9 is formed as acylindrical body of a substantially rectangular shape as a whole. Thelens hood 9 includes an engaging section 100 that is formed at one endside in an axial direction and engaged with a front end of the lensbarrel 3, a pair of upper and lower covers pivotally formed on an innersurface side, and an opening and closing lever 103 for opening andclosing the pair of upper and lower covers.

The engaging section 100 is engaged with a hood mount 110 formed in afront surface periphery of the lens barrel 3. As shown in FIG. 20, inthe hood mount 110, plural guide walls 111 to 114 vertically providedalong an outer peripheral direction and an engaging recess 115 that isprovided between the guide walls 111 and 112 and in and from which anengaging protrusion 119 of the lens hood 9 is engaged and disengaged areformed.

The first guide wall 111 includes a guide section 111 a verticallyprovided along the outer peripheral direction and a regulating section111 b that is vertically provided in an optical axis directioncontinuously from one end of the guide section 111 a to thereby comeinto contact with side walls of guide recesses 118 of the lens hood 9and regulate a pivoting area of the lens hood 9. In the first guide wall111, guide groove 116, one end of which is closed by the regulatingsection 111 b and the other end of which is opened, is formed betweenthe guide section 111 a and the front end face of the lens barrel 3. Anengaging wall 121 formed in the engaging section 100 of the lens hood 9is engaged in the guide groove 116 from the open end and pivoting of thelens hood 9 is guided.

The second guide wall 112 is provided adjacent to the regulating section111 b of the first guide wall 111, whereby an engaging recess 115 in andfrom which the engaging protrusion 119 of the lens hood 9 engages anddisengages is formed between the second guide wall 112 and the firstguide wall 111. The second guide wall 112 regulates pivoting of theengaging protrusion 119 between the second guide wall 112 and the firstguide wall 111 to thereby regulate pivoting of the lens hood 9 and holdthe lens hood 9 in a predetermined engaging position.

The third and fourth guide walls 113 and 114 are formed on the frontsurface of the lens barrel 3 together with the first guide wall 111 tobe arranged at substantially equal intervals. As in the guide section111 a of the first guide wall 111, the guide grooves 116 are formedbetween the third and fourth guide walls 113 and 114 and the front endface of the lens barrel 3. Engaging walls 121 formed to be arranged atequal intervals in the engaging section 100 of the lens hood 9 areengaged in the guide grooves 116 and pivoting of the lens hood 9 isguided.

The engaging section 100 of the lens hood 9 mounted on such a hood mount110 includes, as shown in FIGS. 18 and 19, the guide recesses 118 inwhich the respective guide walls 111, 113, and 114 of the hood mount 110slide, an engaging protrusion 119 that is detachably engaged in theengaging recess 115, and urging members 120 that are disposed in theguide recesses 118 and urge end faces of the first guide wall 111 andthe third guide wall 113.

The guide recesses 118 are formed between an engaging wall 121vertically provided from an inner peripheral surface of the lens hood 9and an end face 122 exposed on a rear surface side on the innerperipheral surface of the lens hood 9. Three guide recesses 118 arearranged at equal intervals on the inner peripheral surface of the lenshood 9 in association with the guide grooves 116 arranged at equalintervals in the hood mount 110. When the lens hood 9 is mounted on thehood mount 110, the first guide wall 111, the third guide wall 113, andthe fourth guide wall 114 of the hood mount 110 slide in the respectiveguide recesses 118.

When the lens hood 9 is mounted on the hood mount 110, the respectiveengaging walls 121 guide pivoting of the lens hood 9 inserted throughfrom the open end sides of the respective guide grooves 116. Among theengaging walls 121, an engaging wall 112A that engages in the guidegroove 116 provided between the first guide wall 111 and the front endface of the lens barrel 3 slides in the guide groove 116 while beingguided by the guide section 111 a and comes into contact with theregulating section 111 b to thereby being regulated to further slide.

The engaging protrusion 119 is supported in a part of the innerperipheral surface of the lens hood 9 to be capable of rising andfalling in an axial direction. The engaging protrusion 119 is engaged inthe engaging recess 115 of the hood mount 110 to thereby regulatepivoting of the lens hood 9. The engaging protrusion 119 has widthslightly smaller than the width of the engaging recess 115 and can besmoothly engaged and disengaged. The engaging protrusion 119 istypically pressed in a rear surface direction for engagement in theengaging recess 115 by a not-shown pressing member. In the engagingprotrusion 119, a disengaging button 124 exposed on the rear surface ofthe lens hood 9 is formed. When the disengaging button 124 is depressed,the engaging protrusion 119 is moved in a front surface direction fordisengagement from the engaging recess 115 against a pressing force ofthe pressing member.

When the lens hood 9 is mounted on the hood mount 110, such an engagingprotrusion 119 is depressed by the guide section 111 a of the firstguide wall 111. When the lens hood 9 is pivoted, the engaging protrusion119 slides to the engaging recess 115 from above the guide section 111 aand is returned in the rear surface direction by the pressing force ofthe pressing member. Consequently, as shown in FIGS. 21 to 23, theengaging protrusion 119 is located at the same height as the first guidewall 111 and the second side wall 112 and engages in the engaging recess115 formed between the first guide wall 111 and the second guide wall112. Consequently, the lens hood 9 is pivoted to a predeterminedposition as shown in FIG. 1 and the like, regulated from pivoting, andheld in the position.

When the disengaging button 124 is depressed by the camera operator, theengaging protrusion 119 moves to the front surface side against thepressing force of the pressing member and retracts from the height sameas that of the first guide wall 111 and the second guide wall 112.Consequently, the lens hood 9 is allowed to pivot and can be removedfrom the hood mount 110.

In the engaging section 100, the urging member 120 is formed in theguide recess 118. As shown in FIG. 24, the urging member 120 is formedas a block member of a substantially rectangular shape. An inclinedsurface 125 is formed in a position opposed to the guide wall 111provided in the hood mount 110. The inclined surface 125 is inclinedwith respect to a pivoting direction of the lens hood 9, whereby anormal direction is set on a plane identical with the pivoting directionof the lens hood 9.

Such an urging member 120 is housed in a hosing section 126 formed inthe guide recess 118. A distal end portion further on a distal end sidethan the inclined surface 125 is inserted through a lower part of theend face 122 forming the guide recess 118, whereby the urging member 120is prevented from dropping from the housing section 126. The urgingmember 120 is supported at an end of a spring member 127 supported inthe inner peripheral surface of the lens hood 9, whereby the urgingmember 120 is allowed to swing along the pivoting direction of the lenshood 9 in the housing section 126.

In the urging member 120, when the lens hood 9 is mounted on the hoodmount 110, as shown in FIGS. 21 and 23, an end face 111 c of the guidesection 111 a of the first guide wall 111, which slides in the guiderecess 118, comes into contact with the inclined surface 125. In thefirst guide wall 111, since the end face 111 c of the guide section 111a, which comes into contact with the inclined surface 125, hasinclination in the same direction as the inclined surface 125, theinclined surface 125 and the end face 111 c come into surface contactwith each other. In the urging member 120, the inclined surface 125urges the end face 111 c of the guide section 111 a with an urging forceof the spring member 127.

As described above, the inclined surface 125 and the end face 111 c ofthe guide section 111 a, which comes into surface contact with theinclined surface 125, incline with respect to the pivoting direction ofthe lens hood 9, whereby the normal direction is set on the planeidentical with the pivoting direction of the lens hood 9. In otherwords, the lens hood 9 is urged in the pivoting direction by the urgingforce of the urging member 120. At this point, since the engagingprotrusion 119 is engaged in the engaging recess 115, pivoting of thelens hood 9 is generally regulated. When the lens hood 9 receives theurging force of the urging member 120, a backlash with respect to thepivoting direction can be prevented.

Similarly, as shown in FIGS. 21 and 22, the urging member 120 is alsoformed in the guide recess 118 in which the third guide wall 113 slides.An inclined surface is also formed on an end face of the third guidewall 113. The third guide wall 113 is urged in the pivoting direction bythe urging member 120. An urging force received by the third guide wall113 is in the same direction as the urging force received by the firstguide wall 111. Therefore, the urging force is caused to act on the lenshood 9 in the same direction by the respective urging members 120.Consequently, it is possible to more effectively prevent a backlash ofthe lens hood 9.

It is also possible to obtain an urging force in the pivoting directionand prevent a backlash of the lens hood 9 by inclining the inclinedsurface formed in the urging member 120 in the pivoting direction of thelens hood 9 and inclining a normal direction of the inclined surface tocross the pivoting direction.

When the lens hood 9 described above is mounted on the hood mount 110,first, a hood index 128 formed on an upper surface thereof is set on alens index 129 formed on the outer peripheral surface of the lens barrel3 and the engaging section 100 is applied to the front surface of thelens barrel 3. At this point, in the lens hood 9, the engagingprotrusion 119 is pressed against the guide section 111 a of the firstguide wall 111 provided in the hood mount 110.

Subsequently, as shown in FIG. 25, the lens hood 9 is pivoted withrespect to the lens barrel 3. Consequently, in the lens hood 9, therespective guide walls 111, 113, and 114 provided in the hood mount 110slide in the guide recess 118 and the respective engaging walls 121engage in the guide grooves 116 provided in the hood mount 110 andslide, whereby a pivoting operation is guided.

When the lens hood 9 is pivoted to the predetermined position shown inFIG. 1 and the like, as shown in FIG. 21, the engaging walls 121 comeinto contact with the regulating section 111 b and the engagingprotrusion 119 pressed by the guide section 111 a engages in theengaging recess 115, whereby further pivoting is regulated. At thispoint, since the engaging protrusion 119 is sprung up in the rearsurface direction of the lens hood 9 by the pressing member, theengaging protrusion 119 engages in the engaging recess 115. It ispossible to cause the camera operator to sense that the lens hood 9 ismounted on the hood mount 110.

When the lens hood 9 is mounted on the hood mount 110, the respectiveend faces of the first guide wall 111 and the third guide wall 113 areurged in the pivoting direction of the lens hood 9 by the urging members120 provided in the guide recesses 118. Therefore, a backlash of thelens hood 9 with respect to the pivoting direction is effectivelyprevented.

When the lens hood 9 is removed from the hood mount 110, the disengagingbutton 124 exposed on the rear surface of the lens hood 9 is depressed.Consequently, the engaging protrusion 119 retracts from the engagingrecess 115 and the lens hood 9 is allowed to pivot. In this state, thelens hood 9 is pivoted in a direction opposite to the direction formounting the lens hood 9 to disengage the respective engaging walls 121and the respective guide grooves 116 provided in the hood mount 110,i.e., the respective guide recesses 118 and the respective guide walls111, 113, and 114 are disengaged. Then, it is possible to remove thelens hood 9 from the hood mount 110.

The mounting section 23 formed in the rear surface 2 d of the apparatusmain body 2 and the auxiliary recording medium unit 5 that is mounted onthe mounting section 23 are explained. The auxiliary recording mediumunit 5 is detachably inserted in the apparatus main body 2 in additionto the tape cartridge housed in the recording and reproducing unit 20 ofthe apparatus main body 2. The auxiliary recording medium unit 5 is usedto record imaged data in parallel to a main recording medium inpreparation for a recording mistake in the tape cartridge in therecording and reproducing unit 20 and used in preparation for asituation such as recording exceeding a recording capacity of the tapecartridge. After the auxiliary recording medium unit 5 is removed fromthe apparatus main body 2, if the auxiliary recording medium unit 5 isconnected to an editing device, it is possible to edit recorded dataindependently from the imaging apparatus 1. Therefore, it is alsopossible to perform imaging by the imaging apparatus 1 and editing inparallel by using only the auxiliary recording medium unit 5 to edit therecorded data.

In the auxiliary recording medium unit 5, as shown in FIGS. 26 and 27,for example, a memory card 131 is detachably housed in a unit main body130 of a substantially rectangular shape as an auxiliary recordingmedium. Besides the memory card 131, for example, disk-like recordingmedia such as a DVD, a BD, a hard disk, and a magneto-optical disk maybe used as auxiliary recording media in the auxiliary recording mediumunit 5.

In the unit main body 130, a lid member 132 is formed on a front surface130 a and supported with a right long side as a fulcrum to freely openand close. In the lid member 132, a lock section 133 that is locked tothe unit main body 130 side is formed on a left side surface 132 a. Thelock section 133 includes a not-shown lock piece that is engaged with alocking piece 134 provided on the unit main body 130 side and an unlocklever 135 that slides the lock piece and unlock the lock piece from thelocking piece 134. In the lid member 132, an editing button 136 forediting recorded data of the memory card 131 is formed on a frontsurface 132 b.

In the unit main body 130, when the lid member 132 is opened, a cardhousing section 137, in which the memory card 131 is inserted, isexposed. In the card housing section 137, an eject button 138 forpushing out the memory card 131 from the card housing section 137 isformed at one end. In such a unit main body 130, in a state in which theauxiliary recording medium unit 5 is mounted on the mounting section 23of the apparatus main body 2, it is possible to open and close the lidmember 132 and insert and detach the memory card 131.

Besides, in the unit main body 130, a monitor 139 is formed in an upperpart of the front surface 130 a. The monitor 139 displays an editingstate and the like concerning the memory card 131. Further, in the unitmain body 130, a disengaging lever 140 that disengages the auxiliaryrecording medium unit 5 from the mounting section 23 to make it possibleto remove the auxiliary recording medium unit 5 from the apparatus mainbody 2 is formed on an upper surface 130 b.

In the unit main body 130, as shown in FIG. 28, a unit-side terminalsection 141 that is connected to a main-body-side terminal section 163formed in the mounting section 23, a miss-insertion preventing piece 142that prevents the unit-side terminal section 141 from beingmiss-inserted in a terminal other than the main-body-side terminalsection 163, engaging pieces 143 that realize engagement with themounting section 23, and an engaging protruded piece 144 that engagesthe unit main body 130 with the mounting section 23 are formed in a rearsurface 130 c opposed to the mounting section 23 of the apparatus mainbody 2.

After the unit-side terminal section 141 is inserted in themain-body-side terminal section 163 and the engaging pieces 143 areinserted in engaging groove sections 164 provided in the mountingsection 23, the unit main body 130 is slid downward, whereby theunit-side terminal section 141 and the main-body-side terminal section163 are connected and the engaging pieces 143 engage in the engaginggroove sections 164.

The unit-side terminal section 141 is, for example, a communicationterminal based on the IEEE 1394 standard. When the unit-side terminalsection 141 is connected to the main-body-side terminal section 163 ofthe apparatus main body 2, information signals of sound, videos, and thelike and driving power are supplied from the apparatus main body 2. Asshown in FIG. 29, the unit-side terminal section 141 is formed toproject from the rear surface 130 a to be insertable in themain-body-side terminal section 163. In association with the unit-sideterminal section 141, as shown in FIG. 31, the main-body-side terminalsection 163 formed in the mounting section 23 is formed in a positionfurther in the depth than the rear surface 2 d of the apparatus mainbody 2 such that a main body terminal 174 can be connected by insertingthe unit-side terminal section 141. Consequently, a terminal other thanthe unit-side terminal section 141 is prevented from being connected tothe main-body-side terminal section 163.

As shown in FIGS. 30A and 30B, such a unit-side terminal section 141 isformed in a supporting plate 150 swingably supported in the unit mainbody 130 and includes a base section 151 provided protrudingly from amain surface of the supporting plate 150, a unit terminal 152 formed inan upper part of the base section 151, a pair of connection guides 153vertically provided on both sides of the unit terminal 152, and afitting protrusion 154 that is formed on an upper side surface of thebase section 151 and fits in a fitting wall section 173 of themain-body-side terminal section 163.

Since the supporting plate 150 is supported to be generally flush withthe rear surface 130 c of the unit main body 130, the base section 151projects from the rear surface 130 c. Consequently, in the base section151, the unit terminal 152 formed in an upper part thereof is insertedto a position where the unit terminal 152 can be connected to the mainbody terminal 174 of the main-body-side terminal section 163 formed inthe depth of the mounting section 23.

Since the connection guides 153 vertically provided on both the sides ofthe unit terminal 152 are formed over an up to down direction of theunit main body 130, the connection guides 153 are formed along a slidedirection of the unit-side terminal section 141 inserted in themain-body-side terminal section 163. The connection guides 153 areguided by guide recesses 176 provided on both sides of the main bodyterminal 174 of the main-body-side terminal section 163 described laterto thereby guide the slide of the unit-side terminal section 141 andsecure smooth insertion and detachment of the unit terminal 152 and themain body terminal 174.

The fitting protrusion 154 formed on an upper side surface of the basesection 151 is formed in an irregular shape and can be fit in anirregular shape of the fitting wall section 173 of the main-body-sideterminal section 163 provided in association with the fitting protrusion154. Therefore, when the fitting protrusion 154 fits in the fitting wallsection 173, the unit-side terminal section 141 can be inserted in themain-body-side terminal section 163.

The miss-insertion preventing piece 142 formed on the supporting plate150 together with the unit-side terminal section 141 is formed in asubstantially rectangular plate shape and vertically provided near theunit-side terminal section 141, for example, about several centimetersbelow the unit-side terminal section 141. When the unit-side terminalsection 141 is inserted in the main-body-side terminal section 163, themiss-insertion preventing piece 142 is inserted into the opening 25 ofthe mounting section 23. Since the miss-insertion preventing piece 142is vertically provided near the unit-side terminal section 141, themiss-insertion preventing piece 142 can prevent the unit-side terminalsection 141 from being inserted in a terminal other than themain-body-side terminal section 163.

In the supporting plate 150 on which the unit-side terminal section 141and the miss-insertion preventing piece 142 are provided, as shown inFIGS. 30A and 30B, a main surface section 156, a side surface section158 in which a supporting shaft 157 supported by the unit main body 130is formed, and a locking side 159 that is locked to the rear surface 130c of the unit main body 130 are formed.

The supporting shaft 157 is formed below the main surface section 156and pivotally supported by a bearing section 160 formed in the unit manbody 130. Therefore, the supporting shaft 157 can swing in an arrow Zdirection in FIG. 30A. The locking side 159 formed in the upper part ofthe main surface section 156 is locked to the unit main body 130 and themain surface section 156 comes into contact with the internal structureof the unit main body 130, whereby a swing range in the Z direction ofthe supporting plate 150 is regulated. Since the supporting shaft 157 issupported with a slight space to the bearing section 160 in an axialdirection, the supporting plate 150 can also swing in an arrow Xdirection in FIG. 30B.

In this way, the supporting plate 150 is allowed to swing in the arrow Xdirection and the arrow Z direction in FIG. 30A and is regulated fromswinging in an up to down direction, which is a slide direction of theunit-side terminal section 141. Consequently, when the camera operatorinserts the unit-side terminal section 141 into the main-body-sideterminal section 163 and performs positioning of the unit terminal 152and the man body terminal 174, it is possible to reduce a load on theunit-side terminal section 141 by allowing the unit-side terminalsection 141 to swing. In the auxiliary recording medium unit 5, sincethe swing in the slide direction of the unit terminal 152 with respectto the main-body-side terminal section 163 is regulated, it is possibleto secure sure connection between the unit terminal 152 and the mainbody terminal 174 and prevent the unit terminal 152 from coming off fromthe main body terminal 174 when the apparatus main body 2 swings. Inparticular, the imaging apparatus 1 is used not only in a stationarystate. The imaging apparatus 1 may move together with the cameraoperator or may be sometimes used by the camera operator while running.In such a case, since the supporting plate 150 swings, it is possible toabsorb vibration and impact and secure connection between the unit-sideterminal section 141 and the main-body-side terminal section 163.Moreover, when the auxiliary recording medium unit 5 is removed from themounting section 23, since the swing in the slide direction of theunit-side terminal section 141 is regulated, it is possible to surelyremove the unit terminal 152 from the main body terminal 174. Since theswing in the arrow X direction and the arrow Z direction is allowed, itis possible to reduce a load on the unit-side terminal section 141 andthe main-body-side terminal section 163.

The engaging pieces 143 formed on the rear surface 130 c of the unitmain body 130 are formed on both the sides in the width direction overthe slide direction of the unit main body 130 with respect to themounting section 23. In the engaging pieces 143, protrusions 143 a thatengage in the engaging groove sections 164 formed on the mountingsection 23 side while being vertically spaced apart are formed. Theprotrusions 143 a are formed to extend to a lower part of the unit mainbody 130, inserted from opening ends of the engaging groove sections 164opened to an upper part of the unit main body 130, and clamped in theengaging groove sections 164 when the unit main body 130 is sliddownward. When the engaging pieces 143 are clamped by the engaginggroove sections 164, the unit main body 130 is mounted on the mountingsection 23.

Since the protrusions 143 a clamped in the engaging groove sections 164are provided in two places while being vertically spaced apart and arecontinuous, the engaging pieces 143 are vertically provided in a longshape. Therefore, the strength of the engaging pieces 143 is securedcompared with the strength obtained when only the protrusions 143 aclamped in the engaging groove sections 164 are vertically provided.Even when the engaging pieces 143 collides with members around the samebecause the engaging pieces 143 are vertically provided on the rearsurface 130 c of the unit main body 130, the engaging pieces 143 do noteasily break.

Earth terminals 162 are formed near the engaging pieces 143. When theunit main body 130 is mounted on the mounting section 23, the earthterminals 162 are brought into contact with terminals formed in themounting section 23 and connected to an earth of the apparatus main body2.

The engaging protruded piece 144 for engaging the unit main body 130with the mounting section 23 regulates the slide of the unit main body130 mounted on the mounting section 23 in an upward direction in whichthe engaging pieces 143 and the engaging groove sections 164 aredisengaged. The engaging protruded piece 144 is projected to themounting section 23 side from the rear surface 130 c of the unit mainbody 130. When the unit main body 130 is mounted on the mounting section23, the engaging protruded piece 144 engages in an engaging recess 165provided on the mounting section 23 side. Consequently, the unit mainbody 130 is regulated from sliding in the up to down direction in astate in which the engaging pieces 143 are engaged in the engaginggroove sections 164 and is prevented from coming off from the mountingsection 23.

The engaging protruded piece 144 is associated with the disengaginglever 140 provided on the upper surface 130 b of the unit main body 130.When the disengaging lever 140 is depressed, the engaging protrudedpiece 144 retracts into the unit main body 130. Therefore, in a state inwhich the disengaging lever 140 is depressed and the engaging protrudedpiece 144 and the engaging recess 165 are disengaged, the unit main body130 is slid to an upper part of the mounting section 23. Consequently,it is possible to pull out the engaging pieces 143 from the engaginggroove sections 164 and remove the unit main body 130 from the mountingsection 23.

The mounting section 23 on which such an auxiliary recording medium unit5 is mounted is explained. As shown in FIGS. 31 to 33, the mountingsection 23 is provided in the opening 25 opened in the rear surface 2 dof the apparatus main body 2 and around the opening 25. In the mountingsection 23, the main-body-side terminal section 163 to which theunit-side terminal section 141 is connected, the engaging groovesections 164 in which the engaging pieces 143 of the unit main body 130are engaged, the engaging recess 165 in which the engaging protrudedpiece 144 is engaged, an external connection terminal 166 branched froma signal line identical with that of the main-body-side terminal section163, and a group of various output terminals 167 are formed.

The main-body-side terminal section 163 is formed in a position slightlyin the depth in a terminal recess 170 opened in the rear surface 2 d ofthe apparatus main body 2. As shown in FIGS. 34A and 34B, themain-body-side terminal section 163 includes a metal frame 171 and aterminal unit 172 provided in the frame 171. The frame 171 and theterminal unit 172 are integrally screwed in the terminal recess 170.

The frame 171 forms a rectangular cylindrical member. A fitting wallsection 173 that is opened in one main surface and fits with theunit-side terminal section 141 is formed in the frame 171. The fittingwall section 173 has an irregular shape corresponding to the irregularshape of the fitting protrusion 154 formed in the unit-side terminalsection 141. When the fitting protrusion 154 fits in the fitting wallsection 173, the unit-side terminal section 141 is inserted into theframe 171.

In the terminal unit 172 integrally provided in an internal space of theframe 171, the main body terminal 174 that is connected to the unitterminal 152 of the unit-side terminal section 141, a cover 175 thatcloses the main body terminal 174, and the guide recesses 176 in whichthe connection guides 153 formed in the unit-side terminal section 141slide are formed.

In the frame 171, an inclined surface 177 is formed over the up to downdirection, which is the slide direction of the unit main body 130. Themain body terminal 174 is formed at the top of the inclined surface 177.When the main body terminal 174 is not used, the main body terminal 174is covered by the cover 175 supported by the terminal unit 172 to beslidable in the slide direction of the unit main body 130 and preventsadhesion of dust and short-circuit due to contact with metal components.The cover 175 is typically urged in an upward direction for closing themain body terminal 174 by a not-shown urging member. When the unit-sideterminal section 141 is inserted into the frame 171 and slid downward,the cover 175 is depressed by the connection guide 153 and faces themain body terminal 174 outward to make it possible to connect the mainbody terminal 174 to the unit terminal 152.

The guide recesses 176 are provided on both the sides of the main bodyterminal 174 and the connection guides 153 formed the unit-side terminalsection 141 are slid in the guide recesses 176. The guide recesses 176are formed between the side wall of the terminal unit 172 and the mainbody terminal 174 over the slide direction of the unit-side terminalsection 141. When the connection guides 153 are slid, the guide recesses176 guide the slide of the unit-side terminal section 141 and make itpossible to surely connect the unit terminal 152 and the main bodyterminal 174.

Such a main-body-side terminal section 163 is inserted into the frame171 while the unit-side terminal section 141 fits the fitting protrusion154 in the fitting wall section 173. Consequently, in the main-body-sideterminal section 163, the connection guides 153 are located in the guiderecesses 176 and the unit terminal 152 is located at a lower end of theinclined surface 177. As shown in FIG. 34B, when the unit main body 130is slid downward on the mounting section 23, in the main-body-sideterminal section 163, while the connection guides 153 are guided by theguide recesses 176, the unit terminal 152 slides on the inclined surface177. After the connection guides 153 depress the cover 175 and exposethe main body terminal 174, the unit terminal 152 and the main bodyterminal 174 are connected. At this point, in the unit main body 130,the engaging pieces 143 slide in the engaging groove sections 164 of themounting section 23, the protrusions 143 a are clamped in the engaginggroove sections 164, and the engaging protruded piece 144 is engaged inthe engaging recess 165.

When the main-body-side terminal 163 is disengaged from the unit-sideterminal section 141, the unit main body 130 is slid upward on themounting section 23. Therefore, the unit-side terminal section 141slides upward while being guided by the guide recesses 176 in the frame171 and the main body terminal 174 and the unit terminal 152 aredisengaged. When the fitting protrusion 154 is ejected from the fittingwall section 173, the unit-side terminal section 141 is removed from themain-body-side terminal section 163. As shown in FIG. 34A, in themain-body-side terminal section 163, the cover 175 is slid upward andthe main body terminal 174 is shielded.

When the main-body-side terminal section 163 is attached to and detachedfrom the unit-side terminal section 141, as described above, theunit-side terminal section 141 is swingable in any direction except theconnecting direction of the main body terminal 174 and the unit terminal152. Therefore, an unnatural force is not applied to the main-body-sideterminal section 163, which is prevented from breaking. Even when theapparatus main body 2 swings in a state in which the unit-side terminalsection 141 is attached to the main-body-side terminal section 163,since the unit-side terminal section 141 swings, impact on the main bodyterminal 174 and the unit terminal 152 is absorbed. Therefore, it ispossible to maintain connection reliability.

The engaging groove sections 164 that engage with the engaging pieces143 formed in the unit main body 130 are formed on the inner sidesurface of the opening 25 opened in the rear surface 2 d of theapparatus main body 2. The engaging groove sections 164 includeinserting sections 164 a that are formed on both sides of the inner sidesurface of the opening 25 and through which the protrusions 143 a of theengaging pieces 143 are inserted and clamping sections 164 b that clampthe protrusions 143 a inserted through the inserting section 164 a.

The inserting sections 164 a are formed from the rear surface 2 d to theinside of the opening 25. The clamping sections 164 b are formeddownward from lower surface sides of the inserting sections 164 a. Afterthe protrusions 143 a of the engaging pieces 143 of the unit main body130 a reinserted through the inserting sections 164 a, the engaginggroove sections 164 slide to a lower part of the mounting section 23,whereby the protrusions 143 a are pressed into the clamping sections 164b. Consequently, the engaging groove sections 164 clamp the protrusions143 a of the engaging pieces 143. The unit main body 130 is preventedfrom dropping from the mounting section 23.

In the engaging groove sections 164, when the unit main body 130 isremoved from the mounting section 23, since the unit main body 130 isslid upward, the protrusions 143 a of the engaging pieces 143 are slidfrom the clamping sections 164 b to the inserting sections 164 a. Whenthe clamping of the protrusions 143 a is released, the unit main body130 is pulled out to the rear surface 2 d side of the apparatus mainbody 2, whereby the engaging pieces 143 are also pulled out from theengaging groove sections 164.

In the respective engaging groove sections 164, earth openings 179 inwhich the earth terminals 162 formed in the unit main body 130 areinserted are formed. In the earth openings 179, terminals connected toan earth in the apparatus main body 2 are exposed. When the unit mainbody 130 is mounted on the mounting section 23, the earth terminals 162are inserted and connected to the earth of the apparatus main body 2.

The engaging recess 165 in which the engaging protruded piece 144provided in the unit main body 130 is inserted is formed above theopening 25. The engaging recess 165 has a size for allowing the engagingprotruded piece 144 to be inserted. When the engaging protruded piece144 is inserted, the engaging recess 165 regulates the unit main body130 from sliding upward. When the engaging protruded piece 144 retractsinto the unit main body 130 according to the depression of thedisengaging lever 140, the engaging recess 165 is disengaged from theengaging protruded piece 144 and allows the unit main body 130 to slide.

As shown in FIG. 32, in a projected surface of the unit main body 130 atthe time when the unit main body 130 is mounted, the external connectionterminal 166 branched from a signal line identical with that of themain-body-side terminal section 163 is formed. The external connectionterminal 166 is a connection terminal based on a connection standard forconnection to peripheral apparatuses such as the IEEE 1394 standard andhas a physical shape different from that of the main-body-side terminalsection 163. The external connection terminal 166 is opened and closedby a terminal lid 180 supported by the hinge mechanism, which is formedin the long side of the opening 25, to be capable of opening andclosing. When the external connection terminal 166 is used, as shown inFIG. 32, when the terminal lid 180 is pivoted to the opening 25 side bythe camera operator, the external connection terminal 166 is exposed tothe outside. When the external connection terminal 166 is not used, asshown in FIG. 31, the external connection terminal 16 is closed by theterminal lid 180 and adhesion of dust and short-circuit due to contactwith metal components is prevented.

As shown in FIG. 33, since the long side of the terminal lid 180supported by the hinge mechanism is provided in a projected surface ofthe unit main body 130 mounted on the mounting section 23, when the unitmain body 130 is mounted on the mounting section 23, opening operationis regulated. Therefore, when the unit main body 130 is mounted on themounting section 23 and the unit-side terminal section 141 is connectedto the main-body-side terminal section 163, use of the externalconnection terminal 166 is prohibited. The terminal lid 180 is opened tomake it possible to use the external connection terminal 166 only in astate in which the unit main body 130 is removed from the mountingsection 23. As shown in FIG. 32, in a state in which the terminal lid180 is opened, the unit main body 130 may be unable to be mounted on themounting section 23 and the main-body-side terminal section 163 isprohibited from being used. In other words, the apparatus main body 2 isconfigured to prohibit the main-body-side terminal section 163 and theexternal connection terminal 166 from being simultaneously connected toother external apparatuses.

This is because, since the main-body-side terminal section 163 and theexternal connection terminal 166 are branched by an identical bus line,if different peripheral apparatuses are simultaneously connectedthereto, it is likely that reliability of communication is spoiled.Functional blocks of the apparatus main body 2 to which the auxiliaryrecording medium unit 5 is connected are shown in FIG. 35. As shown inFIG. 35, in the apparatus main body 2, the main-body-side terminalsection 163 and the external connection terminal 166 are branched by anIEEE 1394 interface 181 connected to a bus line 182. Electric power ofthe battery pack 4 housed in the battery housing section 22 is suppliedto an external apparatus such as the auxiliary recording medium unit 5via the IEEE 1394 interface 181 and via the main-body-side terminalsection 163 and the external connection terminal 166.

The auxiliary recording medium unit 5 uses the electric power of thebattery pack 4 as a driving power supply, records an information signalinputted from the unit-side terminal section 141 by a control unit 185in the memory card 131 and performs recording in the memory card 131,editing operation for recorded data, display on the monitor 139, and thelike according to operation of the editing button 136.

In the apparatus main body 2, a system controller 183 and the recordingand reproducing unit 20, the lens barrel 3, the liquid crystal displaypanel 32, the display unit 36 of the finder unit 35, and the outputterminal group 167 are connected via the bus line 182. Respectiverelated sections are driven by the system controller 183 that receivesan operation instruction from the operation unit 15.

In the mounting section 23, the output terminal group 167 such as an AVoutput terminal is formed below the external connection terminal 166.The output terminal group 167 is also opened and closed by a terminallid and adhesion of dust and short-circuit are prevented. The terminallid that closes the output terminal group 167 is supported on theoutside of a projected surface of the unit main body 130. Therefore, theterminal lid can pivot and the output terminal group 167 can be usedeven in a state in which the unit main body 130 is mounted on themounting section 23.

A process for performing editing of data recorded in the memory card 131using the auxiliary recording medium unit 5 removed from the apparatusmain body 2 is explained. When editing of data in the memory card 131 isperformed, since a power supply is not built in the unit main body 130,as shown in FIGS. 36A to 36C, the auxiliary recording medium unit 5makes connection to the battery pack 4 via an adapter 190 and obtains adriving power supply.

The adapter 190 is formed in a substantially rectangular shape. A unitmounting surface 190 a on which the unit main body 130 of the auxiliaryrecording medium unit 5 is mounted is provided on one surface of theadapter 190 and a battery connecting recess 190 b to which the batterypack 4 is connected is provided on the other surface. As shown in FIG.36A, the unit mounting surface 190 a has a configuration same as that ofthe mounting section 23 provided in the rear surface 2 d of theapparatus main body 2. The unit mounting surface 190 a includes aninserting recess 192 in which the miss-insertion preventing piece 142 isinserted, an engaging groove section 193 that is engaged with theengaging piece 143, and an engaging recess 194 in which the engagingprotruded piece 144 engages.

Since the adapter-side terminal section 191 has a configuration same asthat of the main-body-side terminal section 163, detailed explanation ofthe configuration is omitted. When the unit-side terminal section 141 isconnected to the adapter-side terminal section 191, driving power issupplied to the unit main body 130 from the battery pack 4. Theinserting recess 192 is formed below the adapter-side terminal section191 in association with the miss-insertion preventing piece 142.

The engaging groove section 193 is a section for mounting the unit mainbody 130 on the unit mounting surface 190 a. Since the engaging groovesection 193 has a configuration same as that of the engaging groovesection 164, detailed explanation of the engaging groove section 193 isomitted. After the engaging piece 143 is inserted in the engaging groovesection 164, the protrusion 143 a is clamped in the engaging groovesection 193 by sliding the engaging piece 143 in a downward direction,and the unit main body 130 is mounted on the unit mounting surface 190a.

When the unit main body 130 is mounted on the unit mounting surface 190a, the engaging protruded piece 144 is inserted in the engaging recess194. Since the engaging protrusion 144 is engaged in the engaging recess194, the unit main body 130 is regulated from sliding in an up to downdirection of the unit mounting surface 190 a and the mounting of theunit main body 130 on the adopter 190 is maintained. When thedisengaging lever 140 provided on the upper surface 130 b is depressed,the engaging protrusion 144 retracts from the engaging recess 194 andthe unit main body 130 can slide in an upward direction in which theunit main body 130 is disengaged from the unit mounting surface 190 a.

As shown in FIG. 36B, the battery connecting recess 190 b has aconfiguration same as that of the battery hosing section 22. A recesscorresponding to an external shape of the battery pack 4 is formed inthe battery connecting recess 190 b. In the battery connecting recess190 b, an engaging protrusion 196 with which the engaging recess 28formed in the outer peripheral surface of the battery pack 4 is formedon an inner side surface. When the battery pack 4 is attached, thebattery pack 4 is inserted and slid to a lower surface side, whereby theengaging recess 28 engages with the engaging protrusion 196. A not-shownadapter-side terminal section is formed in a lower surface section ofthe battery connecting recess 190 b. When the battery pack 4 isattached, the battery pack 4 is connected to the battery-side terminalsection.

In the adapter 190, an external connection terminal 197 based on apredetermined communication standard such as USB or IEEE 1394 is formedon a side surface 190 c. For example, an external recording device isconnected to the external connection terminal 197. The externalconnection terminal 197 outputs editing data of the auxiliary recordingmedium unit 5 to the external recording device. When an editing deviceis connected thereto, the external connection terminal 197 performsediting of data recorded in the memory card 131 of the auxiliaryrecording medium unit 5. The external connection terminal 197 is exposedto the outside from a lower surface 198 a of a connecting section 198formed to project over the side surface 190 c of the adapter 190. Aconnector 199, one end of a cable of which is connected to an externalapparatus, is connected to the external connection terminal 197 frombelow. In the adapter 190, the external connection terminal 197 forrealizing connection to the external apparatus is exposed on a lowersurface 198 a of the connecting section 198 and the connector 199 isconnected to the external connection terminal 197 from below. Therefore,wiring can be easily collected without bending, twisting, and the likeof cables.

In such an adapter 190, as shown in FIG. 36C, when the unit main body130 is mounted on the unit mounting surface 190 a and the battery pack 4is connected to the batter connecting recess 190 b, electric power ofthe battery pack 4 is supplied to the unit-side terminal section 141side from the adapter-side terminal section 191. The auxiliary recordingmedium unit 5 can receives the electric power and perform simple editingof various data recorded in the memory card 131. With the auxiliaryrecording medium unit 5, since editing of data is possible in a state inwhich the auxiliary recording medium unit 5 is removed from theapparatus main body 2, it is possible to simultaneously perform roughediting of captured videos and sound in parallel while continuingimaging by the imaging apparatus 1. Since editing of the data recordedin the memory card 131 is performed, it is possible to more efficientlyand quickly perform editing operation than editing performed by using atape cartridge.

In the adapter 190, other than using the battery pack 4, a DC cableterminal 195 may be provided to receive power for home use via a DCadapter and supply the power to the auxiliary recording medium unit 5.

The shoulder-mounted-type imaging apparatus 200 that shares the lensbarrel 3 with the imaging apparatus 1 is explained. As shown in FIGS.37A and 37B to FIG. 39, the imaging apparatus 200 includes an apparatusmain body 201 larger than that of the handy-type imaging apparatus 1described above. A magnetic tape cartridge that can perform HDVrecording is housed in the apparatus main body 201 as a main recordingmedium. As the main recording medium used in the imaging apparatus 200,magnetic tapes other than a DV cassette, disk-like recording mediaincluding optical disks such as a CD, a DVD, and a BD, magneto-opticaldisks, and magnetic disks such as a hard disk, or recording media suchas a semiconductor memory can also be used.

In the apparatus main body 201, the auxiliary recording medium unit 5can be mounted other than the main recording medium. Consequently, theapparatus main body 201 can prepare for situations such as a recordingmistake in the main recording medium and recording exceeding a recordingcapacity and save various data in the main recording medium and thememory card 131 housed in the auxiliary recording medium unit 5 as areserve.

The imaging apparatus 200 includes the apparatus main body 201 formed ina substantially rectangular shape and mounted on the right shoulder ofthe camera operator during imaging and a lens barrel 202 provided on afront surface 201 a of the apparatus main body 201. The lens barrel 202is detachably attachable to the imaging apparatus 200. Plural kinds oflens barrels 202 having different magnifications and the like areprepared as replacement lenses. An optimum lens barrel 202 can bemounted and used according to necessity. A grip section 203 is formed inthe lens barrel 3. The lens barrel 202 including the grip section 203 isdetached from the apparatus main body.

In the lens barrel 202, a lens hood 204 is detachably mounted on a frontsurface thereof. The lens barrel 202 has a configuration same as that ofthe lens barrel 3 except a position of the grip section 203. The lenshood 204 has a configuration same as that of the lens hood 9 describedabove. Therefore, detailed explanation of the lens barrel 202 and thelens hood 204 is omitted.

In the apparatus main body 201, an operation unit 205 for performingvarious kinds of operation is provided on a right side surface 201 b. Amounting section 206 on which the auxiliary recording medium unit 5 ismounted is provided on a left side surface 201 c. A battery pack 207such as a lithium ion secondary battery is detachably attached to a rearsurface 201 d. The imaging apparatus 200 is an imaging apparatus forbusiness use. A large battery having a large capacity is used in thebattery pack 207 because the battery pack 207 needs to be durable inlong-time use.

In the apparatus main body 201, a handle section 208 is formed on anupper surface 201 e. The handle section 208 is formed over a front torear direction substantially in the center of a width direction of theupper surface 201 e of the apparatus main body 201. The camera operatorcan hold the apparatus main body 201 with sufficient balance by grippingthe handle section 208 during imaging and transportation. An accessoryshoe 208 a to which various accessories are attached is formed on anupper surface of the handle section 208. A finder block 209 for visuallyrecognizing an image captured via an imaging lens of the lens barrel 202is provided in front of the handle section 208.

In such an apparatus main body 201, a magnetic tape cartridge serving asthe main recording medium is housed and a recording and reproducing unit210 that records an information signal in and reproduces the informationsignal from the magnetic tape cartridge is provided further on the rearsurface 201 d side than the mounting section 206. The recording andreproducing unit 210 includes a deck unit in which the magnetic tapecartridge is inserted and driven and a head unit that records aninformation signal in and reproduces the information signal from themagnetic tape cartridge. In the recording and reproducing unit 210, aninserting and detaching opening through which the magnetic tapecartridge is inserted and detached is exposed on an upper surface 201 eof the apparatus main body 201. An opening and closing lid 212 foropening and closing the inserting and detaching opening is formed. Whenthe tape cartridge is inserted in the deck unit, the opening and closinglid 212 is pivoted to expose the inserting and detaching opening and thetape cartridge is inserted lengthwise.

In the imaging apparatus 200, two kinds of large and small magnetic tapecartridges having different recording capacities are prepared as themain recording medium. The two kinds of magnetic tape cartridges can beinserted in the inserting and detaching opening of the recording andreproducing unit 210.

In the apparatus main body 201, a shoulder pad 211 put on the rightshoulder of the camera operator is formed on a lower surface 201 f. Whenthe camera operator performs imaging, as shown in FIG. 37B, the cameraoperator places the apparatus main body 201 on the right shoulder andgrips the grip section 203 provided in the lens barrel 202 with theright hand. The camera operator keeps a balance by supporting the weightof the entire imaging apparatus 200 with the right shoulder and performsadjustment of an imaging direction, an angle of view, and the like withthe right hand for gripping the grip section 203.

In the imaging apparatus 200, the grip section 203 attached to the lensbarrel 202 is formed on a front surface side of the lens barrel 202.Therefore, even when the center of gravity is present on the apparatusmain body 201 side and the imaging apparatus 200 is placed on theshoulder of the camera operator, the camera operator can easily performangle adjustment using the grip section 203.

The finder block 209 provided in front of the handle section 208 isexplained. As shown in FIGS. 40A and 40B, the finder block 209 includesa main body unit 213 attached to a front surface of the apparatus mainbody 201 and a display unit 214 rotatably supported by the main bodyunit 213 and is formed in a substantially L shape as a whole.

The main body unit 213 includes a housing of a substantially rectangularshape. A connecting section 215 that is connected to the apparatus mainbody 201 is provided on a rear surface side of the main body unit 213. Amicrophone holder 217 to which an external microphone 216 is attached isprovided on the left side surface 201 c of the apparatus main body 201.The external microphone 216 and the microphone holder 217 haveconfigurations same as those of the external microphone 6 and themicrophone holder 34. Therefore, detailed explanation of the externalmicrophone 216 and the microphone holder 217 is omitted. In the mainbody unit 213, an operation unit 218 in which operation switches,operation buttons, and the like for performing various kinds ofoperation are arrayed is provided on the front surface 201 a side of theapparatus main body 201.

Such a main body unit 213 is connected to the apparatus main body 201via a connection cable 219. Video data captured from the lens barrel 202and video data reproduced by the recording and reproducing unit 210 andthe auxiliary recording medium unit 5 are supplied to the main body unit213. The main body unit 213 displays the video data on the display unit214.

In the main body unit 213, the display unit 214 is provided on the rightside surface 201 b side of the apparatus main body 201. As shown inFIGS. 40A and 40B, the display unit 214 includes a finder member 221incorporating a small liquid crystal monitor 220 that displays a videocaptured in the lens barrel 202 and video data reproduced by therecording and reproducing unit 210 and the auxiliary recording mediumunit 5, a liquid crystal display panel 222 provided on an upper surfaceof the finder member 221, and an eyepiece member 223 detachably providedin the finder member 221 and used for visually recognizing the liquidcrystal monitor 220.

The finder member 221 includes a supporting section 221 a supported bythe main body unit 213 and attached with the liquid crystal displaypanel 222 and a connecting section 221 b to which the eyepiece member223 is connected. One side surface of the substantially rectangularhousing of the supporting section 221 a is supported by the main bodyunit 213. A hinge mechanism 225 to which the liquid crystal displaypanel 222 is attached and an operation panel unit 226 for editing avideo displayed on the liquid crystal display panel 222 are formed on anupper surface of the supporting section 221 a.

The connecting section 221 b has a cylindrical shape having a diametersubstantially same as that of the eyepiece member 223 as a whole andincorporates the liquid crystal monitor 220 directed in a directionopposed to the eyepiece member 223 and visually recognized via theeyepiece member 223. A pair of connecting pawls 231 are verticallyprovided to be opposed to each other across the liquid crystal monitor220 on a base plate 230 on which the liquid crystal monitor 220 isexposed. In the connecting pawls 231, locking protrusions 231 aprotruded inwardly are formed. The eyepiece member 223 is connected tothe finder member 221 by locking the locking protrusion 231 a inconnecting holes 241 of the eyepiece member 223. In the connectingsection 221 b, cutout sections 233 that are opposed to the connectingpawls 231 and through which the eyepiece member 223 is inserted areformed on an outer peripheral wall 232 vertically provided around thebase plate 230.

In such a finder member 221, the supporting section 221 a is supportedby the main body unit 213 to be pivotable in an up to down direction.The camera operator pivots the finder member 221 according to necessityto thereby use the eyepiece member 223 in an optimum direction.

The eyepiece member 223 includes a cylindrical holder 235 that isconnected to the connecting section 221 b of the finder member 221, alens box 236 attached to the inside of the holder 235, and an eye cup237 on which the camera operator places the eyes. In the holder 235, theframe plate 238 is formed in the inside of a cylinder and the lens box236 is screwed to the frame plate 238. A main surface of the frame plate238 is opened and a lens group 239 housed in the lens box 236 is exposedfrom the opening.

A pair of connecting arms 240 are extended in an outer periphery of theholder 235 in association with the connecting pawls 231 provided in theconnecting section 221 b of the finder member 221. The connecting arms240 fit in the cutout sections 233 provided in the outer peripheral wall232 of the connecting section 221 b. Engaging holes 240 a are formed atdistal end portions of the connecting arms 240. Locking pieces 242 towhich the locking protrusions 231 a of the connecting pawls 231 arelocked are engaged on inner sides of the engaging holes 240 a.

The locking pieces 242 are formed in a substantially rectangular boxshape. A pair of sidewalls 242 a spaced apart in an inside to outsidedirection are provided in the locking pieces 242. Connecting holes 241to which the engaging protrusions 231 a of the connecting pawls 231 arelocked are formed in the inner sidewalls 242 a. Protrusions 244 thatengage in the engaging holes 240 a of the connecting arms 240 are formedin outer side walls 242 b. In the locking pieces 242, as shown in FIG.41 and FIGS. 42A and 42B, the inner sidewalls 242 a are typically urgedoutward by a leaf spring 245. Therefore, when the locking pieces 242 areconnected to the connecting section 221 b, the connecting holes 241 ofthe inner sidewalls 242 a are pressed by the locking protrusions 231 aof the connecting pawls 231 and the locking pieces 242 are preventedfrom coming off. The leaf spring 245 is supported by a not-shownsupporting section formed in the holder 235 to thereby typically urgethe locking pieces 242 to the outside and engages the engaging holes 240a of the connecting arms 240 and the protrusions 244 of the outersidewalls 242 b.

In the holder 235, a focus lever 246 for adjusting a focus of the lensgroup 239 housed in the lens box 236 is formed in a part of an outerperiphery. The lens box 236 enlarges and shows display on the liquidcrystal monitor 220 provided in the connecting section 221 b. When theeyepiece member 223 is connected to the finder member 221, the lens box236 is opposed to the liquid crystal monitor 220.

The eye cup 237 is made of an elastic member such as rubber formed in acup shape and is joined on the outer periphery of the holder 235. Theeye cup 237 covers an eye and a region around the eye of the cameraoperator to thereby prevent external light from being made incident inthe holder 235.

The liquid crystal display panel 222 supported by the hinge mechanism225 provided in the supporting section 221 a of the finder member 221displays a video captured by the lens barrel 202 and video datareproduced by the recording and reproducing unit 210 and the auxiliaryrecording medium unit 5. The camera operator uses the liquid crystaldisplay panel 222 to image a video while visually recognizing the videopresently captured or check a captured video.

The liquid crystal display panel 222 is pivotally supported by the hingemechanism 225 provided on the upper surface of the supporting section221 a and is adjusted to an optimum angle by the camera operator.Therefore, the liquid crystal display panel 222 can be pivoted not onlyto the camera operator side but also to, for example, the front surface201 a side of the apparatus main body 201, i.e., the side of a personbeing imaged. Consequently, the person being imaged can check how he orshe looks in a video.

Various kinds of reproduction such as frame stepping, fast forward, andpause are applied to a reproduced video displayed on the liquid crystaldisplay panel 222 according to operation of the operation panel unit 226provided in the supporting section 221 a.

In such a finder block 209, since the finder member 221 and the eyepiecemember 223 are separated, as shown in FIG. 40A, the liquid crystalmonitor 220 provided in the connecting section 221 b is exposed to theoutside. Therefore, for example, since an angle of view is cut in avideo that the camera operator enlarges with the lens group 239 usingthe eyepiece member 223, the camera operator can also visually recognizea video of the liquid crystal monitor 220 directly. The camera operatorcan replace the eyepiece member 223 with the eyepiece member 223 withthe eye cup 237 having a different shape and made of a differentmaterial to improve a sense of use. Moreover, since the liquid crystalmonitor 220 is directly exposed to the outside by removing the eyepiecemember 223, dust adhering to the liquid crystal monitor 220 can beeasily wiped off.

Attaching and detaching operation for the finder member 221 and theeyepiece member 223 is explained. The attachment of the eyepiece member223 is performed by inserting, from a state in which the finder member221 and the eyepiece member 223 are separated, the connecting arms 240provided in the holder 235 of the eyepiece member 223 through the cutoutsections 233 formed in the outer peripheral wall 232 of the connectingsection 221 b of the finder member 221 to fit the connecting arms 240into the cutout sections 233. Consequently, the connecting pawls 231vertically provided from the base plate 230 are inserted between theinner sidewalls 242 a and the outer sidewalls 242 b of the lockingpieces 242 engaged in the inner sides of the connecting arms 240. Thelocking protrusions 231 a formed at the distal ends of the connectingpawls 231 lock to the connecting holes 241 provided in the innersidewalls 242 a of the locking pieces 242. At this point, the lockingprotrusions 231 a are pressed into the connecting holes 241 while thelocking pieces 242 slightly bends to the inner side against an urgingforce of the leaf spring 245.

Consequently, the eyepiece member 223 is connected to the finder member221. At this point, in the finder block 209, the holder 235 of theeyepiece member 223 and the outer peripheral wall 232 of the connectingsection 221 b of the finder member 221 are connected to be generallyflush with each other. Further, in the finder block 209, the liquidcrystal monitor 220 provided in the connecting section 221 b and thelens group 239 of the lens box 236 of the eyepiece member 223 areopposed to each other. It is possible to enlarge and visually recognizea video of the liquid crystal monitor 220 via the lens group 239.

When the eyepiece member 223 is removed from the finder member 221,first, the camera operator pinches distal ends of the pair of connectingarms 240 with the thumb and the index finger or the like and presses theconnecting arms 240 to the inner side. Consequently, the locking pieces242 are urged to the inner side against the urging force of the leafspring 245. The connecting holes 241 of the inner sidewalls 242 a andthe locking protrusions 231 a of the connecting pawls 231 are unlocked.In this state, when the connecting arms 240 are pulled out from thecutout sections 233, the connecting arms 240 are pulled out from betweenthe inner and outer sidewalls 242 a and 242 b of the locking pieces 242.The eyepiece member 223 can be separated from the finder member 221.

In this way, the camera operator simultaneously presses the pair ofconnecting arms 240 provided in the opposed positions of the holder 235of the eyepiece member 223 to attach and detach the connecting arms 240.Therefore, the connection to the connecting pawls 231 is not releasedsimply by pressing one of the connecting arms 240. It is possible toprevent the eyepiece member 223 from coming off from the finder member221 by mistake.

Since the camera operator performs attaching and detaching operation forthe finder block 209 while pinching the pair of connecting arms 240 ofthe eyepiece member 223, the camera operator holds the eye cup 237 witha hand. Therefore, it is possible to surely hold the eyepiece member 223and surely perform attachment to and detachment from the finder member221.

The mounting section 206 of the apparatus main body 201 on which theauxiliary recording medium unit 5 is mounted is explained. As shown inFIGS. 43 to 46, in the imaging apparatus 200, the mounting section 206is provided in a position biased to the front surface 201 a side on theleft side surface 201 c of the apparatus main body 201. As shown in FIG.43, when the auxiliary recording medium unit 5 is not mounted, themounting section 206 is closed by a lid member 250. As shown in FIG. 46,after the lid member 250 is removed, the auxiliary recording medium unit5 is mounted on the mounting section 206. Since the auxiliary recordingmedium unit 5 used in the imaging apparatus 200 is the same as theauxiliary recording medium unit 5 mounted on the imaging apparatus 1,detailed explanation of the auxiliary recording medium unit 5 isomitted.

As shown in FIG. 45, the mounting section 206 is formed in a recessedsurface section formed in a substantially rectangular shape in the leftside surface 201 c of the apparatus main body 201 and includes amain-body-side terminal section 251 to which the unit-side terminalsection 141 of the auxiliary recording medium unit 5 is inserted,engaging groove sections 252 in which the engaging pieces 143 of theunit main body 130 are engaged, an engaging recess 253 in which theengaging protrusion 144 is engaged, an external connection terminal 254branched from a signal line identical with that of the main-body-sideterminal section 251, and a screw hole 255 to which the lid member 250is screwed.

Since the main-body-side terminal section 251 has a configuration sameas that of the main-body-side terminal section 163 of the imagingapparatus 1, detailed explanation of the main-body-side terminal section251 is omitted. The main-body-side terminal section 251 is formed in aposition slightly in the depth in the terminal recess 256 opened in themounting section 206. When the unit-side terminal section 141 ismounted, the main-body-side terminal section 251 transmits various dataof videos, sound, and the like captured from the lens barrel 202 andsupplies electric power of the battery pack 207 to the auxiliaryrecording medium unit 5 as driving power.

An inserting recess 257 in which the miss-insertion preventing piece142, which is protrudingly provided in the unit main body 130, is openedbelow the main-body-side terminal section 251.

Since the engaging groove sections 252 in which the engaging pieces 143of the unit main body 130 are engaged have a configuration same as thatof the engaging groove sections 164 of the imaging apparatus 1, detailedexplanation of the engaging groove sections 252 is omitted. Two engaginggroove sections 252 are formed over the slide direction of the auxiliaryrecording medium unit 5 to be spaced apart in the width direction in themounting section 206 in association with the engaging pieces 143 of theunit main body 130.

In the respective engaging groove sections 252, earth openings 258 inwhich the earth terminals 162 formed in the unit main body 130 areinserted are formed. Terminals connected to an earth in the apparatusmain body 201 are exposed in the earth opening 258. When the unit mainbody 130 is mounted on the mounting section 206, the earth terminals 162are inserted and connected to the earth of the apparatus main body 201.

The engaging recess 253 in which the engaging protrusion 144 is engagedis formed next to the main-body-side terminal section 251 and has a sizefor allowing the engaging protruded piece 144 to be inserted. When theengaging protruded piece 144 is inserted, the engaging recess 253regulates the unit main body 130 from sliding upward. When the engagingprotruded piece 144 retracts into the unit main body 130 according tothe depression of the disengaging lever 140, the engaging recess 253 isdisengaged from the engaging protruded piece 144 and allows the unitmain body 130 to slide.

The external connection terminal 254 branched from the signal lineidentical with that of the main-body-side terminal section 163 isexposed from a part of the mounting section 206 and is provided in aprojected surface of the auxiliary recording medium unit 5 mounted onthe amounting section 206. The external connection terminal 254 is aconnection terminal based on a standard of connection with peripheralapparatuses such as the IEEE 1394 standard. As shown in FIG. 43, theexternal connection terminal 254 is exposed to the outside via aterminal lid 259 provided in the lid member 250 and can be used even ina state in which the mounting section 206 is closed by the lid member250. When the external connection terminal 254 is not used, the externalconnection terminal 254 is closed by the terminal lid 259 to preventadhesion of dust and short-circuit due to contact with metal components.

The external connection terminal 254 is formed in the projected surfaceof the unit main body 130 and is prohibited from being used in a statein which the unit main body 130 is mounted on the mounting section 206.In a state in which an external apparatus is connected to the externalconnection terminal 254, the unit main body 130 is prohibited from beingmounted on the mounting section 206. In other words, like themain-body-side terminal section 163 and the external connection terminal166 of the imaging apparatus 1 described above, the external connectionterminal 254 is prohibited from being connected to other externalapparatuses simultaneously with the main-body-side terminal section 251.

This is because, as in the apparatus main body 2, in the imagingapparatus 200, since the main-body-side terminal section 251 and theexternal connection terminal 254 are branched by an identical bus line,if different peripheral apparatuses are simultaneously connectedthereto, it is likely that reliability of communication is spoiled.

As shown in FIG. 44, the lid member 250 that closes such a mountingsection 206 is formed as a plate-like member having a shapesubstantially the same as the mounting section 206 and includes anengaging screw 260 that engages in the screw hole 255 and the terminallid 259 provided in association with the external connection terminal254.

In the lid member 250, a pair of ribs 261 that are engaged in theengaging groove sections 252 are provided on a rear surface opposed tothe mounting section 206. The lid member 250 is engaged with themounting section 206 when the ribs 261 are engaged in the engaginggroove sections 252. Like the engaging pieces 143 of the unit main body130, the ribs 261 are vertically provide in a long shape over the up todown direction to secure strength. Therefore, even if the ribs 261collide with members around the same because the ribs 261 are verticallyprovided on the rear surface of the lid member 250, the ribs 261 do noteasily break.

The engaging screw 260 is a screw for mounting the lid member 250 on themounting section 206. A screw section 260 a of the engaging screw 260projects on a rear surface 250 a of the lid member 250 opposed to themounting section 206 in association with the screw hole 255 of themounting section 206. A dial section 260 b for rotating the screwsection 260 a is exposed on the surface 250 b of the lid member 250.

One end of the terminal lid 259 provided in association with theexternal connection terminal 254 is made of an elastic member such asrubber and locked to the lid member 250 by a not-shown coupling member.The terminal lid 259 is fit in a terminal hole 262 opened in the lidmember 250. The terminal lid 259 can expose the external connectionterminal 254 to the outside by being removed from the terminal hole 262.

As shown in FIG. 46, the auxiliary recording medium unit 5 is detachablemounted on the mounting section 206. As mounting and detaching operationfor the auxiliary recording medium unit 5, like the operation formounting the auxiliary recording medium unit 5 on and detaching theauxiliary recording medium unit 5 from the mounting section 23 of theimaging apparatus 1, after the unit-side terminal section 141 isinserted in the main-body-side terminal section 251 and the engagingpieces 143 are inserted in the engaging groove sections 252, the unitmain body 130 is slid downward. Consequently, the unit terminal 152 andthe main body terminal of the main-body-side terminal section 251 areconnected and the protrusions 143 a of the engaging pieces 143 areclamped in the engaging groove sections 252. At this point, the engagingprotruded piece 144 of the unit main body 130 engages in the engagingrecess 253 to regulate the unit main body 130 from sliding upward.

When the unit main body 130 is removed from the mounting section 206,the camera operator depresses the disengaging lever 140 to therebyretract the engaging protruded piece 144 into the unit main body 130 anddisengages the engaging protruded piece 144 from the engaging recess253. Consequently, the unit main body 130 is allowed to slide upward onthe mounting section 206. After the engaging pieces 143 and the engaginggroove sections 252 are disengaged and the unit terminal 152 and themain body terminal of the main-body-side terminal section 251 aredisengaged, the unit main body 130 is removed from the mounting section206.

In such an imaging apparatus 200, as shown in FIGS. 47 and 48, themounting section 206 is provided on the front side of the left sidesurface 201 c of the apparatus main body 201. Therefore, the auxiliaryrecording medium unit 5 is located on the opposite side of the cameraoperator. As shown in FIG. 37B, the mounting section 206 is providedbetween the shoulder pad 211 and the grip section 203 and does notinterfere with the arm of the camera operator.

Therefore, in the imaging apparatus 200, even during imaging, theauxiliary recording medium unit 5 can be mounted on and detached fromthe mounting section 206 by a camera assistant or the like. In theimaging apparatus 200, even during imaging, the memory card 131 can beinserted in and detached from the unit main body 130 mounted on themounting section 206 by the camera assistant or the like. Consequently,in the imaging apparatus 200, when a capacity of the memory card 131runs short or when data recorded in the memory card 131 is edited, it ispossible to replace the memory card 131 or the unit main body 130without suspending imaging.

As described above, in the auxiliary recording medium unit 5, thesupporting plate 150, on which the unit-side terminal section 141 isprovided, is swingably supported. Therefore, even when the unit mainbody 130 is mounted on and detached from the mounting section 206 orwhen the apparatus main body 201 swings during imaging, since thesupporting plate 150 swings, vibration and impact are absorbed.Therefore, reliability of connection between the unit-side terminalsection 141 and the main-body-side terminal section 251 is secured.

In the imaging apparatus 200, the auxiliary recording medium unit 5, inwhich the memory card 131 is used as an auxiliary recording medium, ismounted on the front surface 201 a side of the apparatus main body 201.The recording and reproducing unit 210, in which a tape cartridge isused as a main recording medium, is provided on the rear surface 201 dside of the apparatus main body 201. In the imaging apparatus 200, themicrophone holder 217, to which the external microphone 216 is attached,is provided in the main body section 213 of the finder block 209 formedon the front surface 201 a side of the apparatus main body 201.

In this way, in the imaging apparatus 200, the external microphone 216is disposed on the left side surface 201 c side of the apparatus mainbody 201. However, since the recording and reproducing unit 210 isspaced apart from the external microphone 216, operation sound of amotor in the deck unit of the recording and reproducing unit 210 is notcollected by the external microphone 216. In the imaging apparatus 200,the auxiliary recording medium unit 5 is attached near the externalmicrophone 216. However, since the memory card 131 is used as anauxiliary recording medium in the auxiliary recording medium unit 5,large operation sound is not generated during recording and reproductionand the external microphone 216 does not collect noise.

In the imaging apparatus 200, since the built-in microphone isincorporated on the front surface 201 a side of the apparatus main body201 and spaced apart from the recording and reproducing unit 210, thebuilt-in microphone does not collect operation sound and the like of themotor in the deck unit of the recording and reproducing unit 210.

It should be understood by those skilled in the art that variousmodifications, combinations, sub-combinations, and alterations may occurdepending on design requirements and other factors insofar as they arewithin the scope of the appended claims or the equivalents thereof.

1. A lens barrel that configures an imaging apparatus by beingdetachably attached to an imaging apparatus main body, the lens barrelcomprising: a lens barrel in which an imaging lens is formed and aconnecting section to the imaging apparatus main body is formed on oneend side in an optical axis direction of the imaging lens; and a gripsection provided on a side surface of the lens barrel and gripped by acamera operator during imaging, wherein the grip section projects fromthe side surface of the lens barrel further to a side surface of theapparatus main body than an end face on the connecting section side. 2.A lens barrel according to claim 1, wherein the grip section is formedto be located near a center of gravity of the imaging apparatus when thelens barrel is mounted on the imaging apparatus main body.
 3. A lensbarrel according to claim 1, wherein an operation unit of the imagingapparatus is provided in the grip section.
 4. A lens barrel according toclaim 1, wherein an inner side surface of the grip section projectingfrom the side surface of the lens barrel is generally flush with theside surface of the apparatus main body.
 5. An imaging apparatuscomprising: an apparatus main body including a recording and reproducingunit that records information signal in and/or reproducing theinformation signal from a recording medium, and a lens barrel detachablyattached to the apparatus main body, wherein the lens barrel includes alens barrel in which an imaging lens is formed and a connecting sectionto the imaging apparatus main body is formed on one end side in anoptical axis direction of the imaging lens and a grip section providedon a side surface of the lens barrel and gripped by a camera operatorduring imaging, and the grip section projects from the side surface ofthe lens barrel further to a side surface of the apparatus main bodythan an end face on the connecting section side.
 6. An imaging apparatusaccording to claim 5, wherein, in the apparatus main body, on a sidesurface same as that of the grip section and behind the grip section, arecording and reproducing unit in which the recording medium is insertedand from which the recording medium is detached and that records aninformation signal in and/or reproduces the information signal from therecording medium is formed to project sideways.
 7. An imaging apparatusaccording to claim 6, wherein, in the recording and reproducing unit, aninclined surface section that inclines toward the side surface of theapparatus main body is formed from a rear surface side on an oppositeside of an imaging surface side of the apparatus main body to the gripsection side.
 8. An imaging apparatus according to claim 6, wherein therecording and reproducing unit is formed adjacent to a battery housingsection in the apparatus main body.
 9. An imaging apparatus according toclaim 5, wherein the grip section is located near a center of gravity ofthe apparatus main body.
 10. An imaging apparatus according to claim 5,wherein an operation unit is provided in the grip section.
 11. Animaging apparatus according to claim 5, wherein the imaging apparatus isa handy-type video camera for performing imaging while gripping the gripsection with one hand.
 12. An imaging apparatus according to claim 11,wherein, in the apparatus main body, an attaching section to which atripod is attached is formed near a center of gravity and on a lowersurface side.
 13. An imaging apparatus according to claim 5, wherein aninner side surface of the grip section projecting from the side surfaceof the lens barrel is generally flush with the side surface of theapparatus main body.